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Crab-Topped Roasted Eggplant with Lemon and Chile Butter

Eggplant halves scored and roasted until they collapse, filled with lump crab folded through lemon and chile butter, broiled under parmesan, and finished with chives and arugula.

By Camille McLaughlin, RDN, LD, registered dietitian nutritionist

Built forLow-FODMAPDinner
Also fits High-Fiber High-Protein Low-Added-Sugar Low-Glycemic
Eggplant halves collapse in the oven until the scored flesh goes silky enough to eat with a spoon. Lump crab folded through lemon and chile butter piles into the hollows, parmesan browns in patches under the broiler, and chives and a handful of raw arugula go on while everything is still hot.
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Why You'll Love This Recipe

This is the dinner that came out of a good eggplant and half a pound of crab I did not want to bury in a casserole. The vegetable is the plate here, not a side, and once you have eaten an eggplant roasted until it truly collapses you stop thinking of it as filler. It takes about an hour, almost all of it hands off, and it looks like something when it comes out from under the broiler. I make it in late summer when eggplant is heavy and glossy at the market, and it is what I serve when someone is coming over and I want to sit down rather than cook while they talk to me.

Two things decide this dish. The first is roasting the eggplant far longer than feels necessary, cut side down on an oiled pan, until the halves have gone slack and the skin has caved in. Underroasted eggplant is spongy and slightly bitter, and there is no fixing it later. The second is keeping the crab out of the oven until the very end. Crab is already cooked when you buy it, so all it wants is to be warmed through in butter with lemon zest, cayenne, and smoked paprika, then piled on and given three minutes under the broiler with parmesan on top for the sake of the crust.

What lands on the plate is soft under sharp: silky eggplant flesh you eat with a spoon, sweet lumps of crab, and a browned salty cap over both. The arugula alongside is not decoration, it is the pepper and crunch that keeps a rich plate moving. Squeeze the lemon over everything at the table. If crab is beyond what you want to spend on a Tuesday, cooked shrimp chopped rough behaves the same way in the butter and costs a third as much, though the sweetness is different and you will notice.

Roasted eggplant halves with their flesh forked up and collapsed, heaped with white lump crab meat under a browned parmesan crust, scattered with chopped chives and parsley. Save
Prep: 15 minsCook: 45 minsTotal: 60 minsMakes: 4 servingsServing: 1 eggplant half with crab

Ingredients

Serves4Amounts change with the number. The nutrition panel is per serving, so it stays the same.
  • 2 large eggplants (about 2 lb total), halved lengthwise
  • 1 lb cooked lump crab meat, picked over for shell
  • 4 tbsp butter
  • 3 tbsp garlic-infused olive oil, divided
  • 1/2 cup finely grated parmesan
  • 2 tbsp fresh lemon juice, plus the zest of 1 lemon
  • 1/2 tsp cayenne
  • 1 tsp smoked paprika
  • 1/4 cup chopped fresh chives
  • 3 tbsp chopped fresh parsley
  • 3 cups arugula
  • 1 1/4 tsp fine sea salt, divided
  • 1 tsp black pepper

Instructions

  1. Score and season the eggplant: Heat the oven to 425°F (220°C). Halve the eggplants lengthwise and score the cut faces in a deep crosshatch, about a half inch apart, cutting nearly to the skin without piercing it. Brush the cut sides with 2 tablespoons of the garlic-infused olive oil and season them with 3/4 teaspoon of the salt and half the black pepper.
  2. Roast until they collapse: Lay the halves cut side down on a rimmed sheet pan and roast for 30 to 35 minutes. They are ready when the skins have caved in, the halves feel slack when you press them with tongs, and a knife slides into the thickest part with no resistance at all. Go longer rather than shorter here.
  3. Open them up: Turn the halves cut side up and let them cool for 2 minutes. Drag a fork through the flesh in both directions to break it into a rough, ridged bed, keeping it inside the skin. Season the exposed flesh with a pinch of the remaining salt.
  4. Warm the crab in chile butter: Melt the butter with the last tablespoon of oil in a skillet over medium-low heat. Add the lemon zest, the cayenne, and the smoked paprika and let them sizzle for about 30 seconds. Take the pan off the heat, add the crab and the remaining salt, and fold it through gently two or three times, keeping the lumps whole. It only needs to be warm.
  5. Fill and broil: Heat the broiler. Pile the crab and its butter onto the eggplant halves, dividing it evenly, and scatter the parmesan over the top. Broil 6 inches from the element for 2 to 4 minutes, until the cheese is browned in patches. Watch it the entire time, since crab goes from browned to dry in under a minute.
  6. Finish and serve: Squeeze the lemon juice over the halves and scatter the chives, the parsley, and the rest of the black pepper across them. Serve each half on a plate with a handful of arugula alongside, dressed with whatever butter has run onto the pan.
Nutrition Facts
4 servings per recipe
Serving size1 eggplant half with crab
Calories422
% Daily Value*
Total Fat 28g35%
Saturated Fat 11g56%
Trans Fat 0g
Cholesterol 102mg34%
Sodium 1973mg86%
Total Carbohydrate 16g6%
Dietary Fiber 8g27%
Total Sugars 9g
Includes 0g Added Sugars 0%
Protein 29g
Vitamin D 0.3mcg1%
Calcium 308mg24%
Iron 2.2mg12%
Potassium 948mg20%
* Percent Daily Values are based on a 2,000 calorie diet. Values are computed from USDA FoodData Central and are estimates. Per serving (1 eggplant half with crab).

Variations

  • Herb and feta: Use crumbled feta in place of the parmesan and add a tablespoon of chopped mint with the chives.
  • Tomato underneath: Spoon a few halved cherry tomatoes into the forked flesh before the crab goes on so they burst under the broiler.
  • Dairy-free: Skip the butter and the cheese, warm the crab in the infused oil with the spices, and finish with toasted pumpkin seeds for crunch.
  • Smoky and hotter: Double the smoked paprika and add a sliced jalapeno to the butter for a plate with more heat behind the sweetness of the crab.
  • Zucchini boats: Use four halved zucchini in place of the eggplant, roasting them for 20 minutes rather than 30.

Storage & Leftovers

Leftovers keep 2 days in a sealed container in the refrigerator, and crab is the limit rather than the eggplant. Store the halves flat and uncovered until they cool, then seal them, since trapping the steam turns the browned parmesan cap soft and pale.

Reheat in a 350°F (175°C) oven for 8 to 10 minutes, loosely covered with foil for the first five so the crab does not dry out. A microwave works in a pinch at half power, though it turns the crab slightly rubbery and takes the crust off entirely.

Do not freeze the finished dish, since crab goes stringy and eggplant turns to water on thawing. What does work is roasting the eggplant halves ahead. They keep 3 days in the refrigerator, and dinner is then twelve minutes of butter, crab, and the broiler.

Notes & Tips

A few notes from my kitchen about roasting eggplant properly, keeping crab lumps whole, and standing still at the broiler for three minutes.
  • Roast it longer than you think: Slack, caved-in halves are the goal. Eggplant pulled early is spongy and faintly bitter, and no amount of butter on top will rescue it.
  • Score to the skin, not through it: The crosshatch is what lets heat into the middle and gives the fork something to work with. A pierced skin lets the halves flatten out and leak.
  • Why the infused oil works: Garlic flavor is fat-soluble and the FODMAPs that cause the trouble are not, so warming garlic in oil and taking the solids out carries the taste into the dish and leaves the rest behind.
  • Fold the crab, do not stir it: Whole lumps are what you are paying for. Two or three gentle turns in the warm butter is all it takes, and a spatula does less damage than a spoon.
  • Stay at the broiler: Three minutes browns the parmesan and five dries the crab out completely. This is not the moment to go and set the table.
  • Feeding people who are not on the plan: Their half can take a sliced garlic clove browned in the butter and a spoonful of breadcrumbs mixed into the parmesan for a heavier crust. Yours stays exactly as written, on the same pan.

Nutrition & Mindful Eating

A dinner where the vegetable carries the plate: eggplant roasted to the point of collapse, sweet crab warmed in chile butter, and a browned cheese crust over the top.
  • Eggplant and crab are an unlikely pair that works because they are opposites. The vegetable goes soft, smoky, and mild under a long roast, and the crab stays sweet, firm, and cool-tasting on top of it, so no bite is all one thing.
  • Crab is sweet, delicate, and already cooked when you buy it, which is why it needs so little handling here, and it brings a good amount of protein along with the zinc and the B12 that shellfish carry.
  • Eggplant roasted until it collapses turns creamy enough to eat with a spoon, and most of the fiber and the deep purple anthocyanins sit in the skin, which is why the halves are served in their jackets.
  • Butter, cayenne, smoked paprika, and lemon zest warmed together for half a minute is the whole seasoning, and that short sizzle is what turns raw spice into something round and smoky rather than dusty.
  • Arugula alongside is there for pepper and crunch against a soft plate, and the raw leaves bring folate and a bitterness that keeps a buttery dinner from settling heavily.
  • As you eat, notice how completely the eggplant has given way under the fork and how differently the crab behaves against it, and let the pepper of the arugula reset your mouth between bites rather than eating straight through.

Frequently Asked Questions

Can I use shrimp or another shellfish?

Yes. A pound of cooked shrimp chopped into rough pieces goes into the butter exactly the same way, and cooked lump crab from a can or tub works if fresh is not available, though it needs draining and a gentler hand. Do not use imitation crab, which is usually bound with wheat starch and sugars.

My eggplant came out spongy and a little bitter. Why?

It was underroasted, which is the single most common problem with eggplant. Thirty minutes cut side down on a hot pan is a minimum rather than a target, and the halves should look genuinely deflated before they come out. Salting the cut faces ahead is unnecessary with the small, glossy eggplants sold now.

Is this enough dinner on its own?

For most people, yes, since half a large eggplant is a lot of vegetable and a quarter pound of crab is real protein. If you are feeding big appetites, add a scoop of brown rice under each half to catch the butter, or roast a tray of green beans alongside.

Does this fit a low-FODMAP dinner?

It does. The savory work here is done by browned parmesan, chile butter, smoked paprika, and lemon rather than by onion or garlic, so nothing goes missing if those are stripped from your plan. Garlic-infused olive oil brings the aroma back, aged parmesan carries very little lactose, and eggplant sits well at about a cup a serving.