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Shrimp & Avocado Lettuce Cups

Chilled chopped shrimp folded with creamy diced avocado, bright lime juice, fresh cilantro and sliced scallion, then spooned into crisp romaine leaves.

By Camille McLaughlin, RDN, LD, registered dietitian nutritionist

Built forPeganLunch
Also fits Pescatarian AIP Paleo High-Protein Low-Carb Whole30
Shrimp stays sweet and firm when it is served cold, and it carries lime and chili beautifully, which is what makes these cups work. Avocado chopped through does the job of a dressing, lime and cilantro go in cold, and the romaine holds it all in a leaf crisp enough to snap.
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Why You'll Love This Recipe

These lettuce cups are a cool, no-cook-once-the-shrimp-is-ready lunch built for warm days and busy middays. The filling comes together in one bowl and the crisp romaine does the work of a wrap, so you get something fresh and handheld without turning on the oven or reaching for bread. It suits anyone who wants a light but filling meal, and it travels well if you keep the filling and the leaves separate until you eat.

Soft and mild on one side, sharp on the other. Sweet, tender shrimp and rich, buttery avocado are the soft, mild base; lime juice cuts through both with acidity, cilantro brings a green herbal lift, and scallion adds a gentle onion sharpness. Folding the avocado in gently rather than mashing it keeps distinct creamy pieces in every bite, and drying the romaine thoroughly is what keeps the cup crisp instead of soggy. A pinch of salt and a final squeeze of lime pull all of it into focus.

Protein from the shrimp and healthy fat from the avocado and olive oil, a combination that feels substantial and keeps you full without weighing you down. The romaine and cilantro add crunch, water, and fiber, so the meal stays light on the plate while still eating like a real lunch. Nothing here is heavy or fried, yet the creaminess and the cold, crisp texture make it feel like a treat.

Romaine cups filled with pink shrimp and diced avocado, lime wedges alongside. Save
Prep: 15 minsCook: 5 minsTotal: 20 minsMakes: 4 servingsServing: 3 filled lettuce cups

Ingredients

Serves4Amounts change with the number. The nutrition panel is per serving, so it stays the same.
  • 1 lb cooked shrimp, chopped
  • 1 large avocado, diced
  • 12 romaine leaves
  • 3 tbsp lime juice
  • 1/2 cup chopped cilantro
  • 2 tbsp extra-virgin olive oil
  • 4 scallions, sliced
  • 1/4 tsp salt

Instructions

  1. Cook the shrimp: If your shrimp are raw, bring a pot of salted water to a gentle boil, drop in the peeled and deveined shrimp, and cook just until they turn pink and opaque and curl into a loose C shape, about 2 to 3 minutes. Drain and plunge into a bowl of ice water to stop the cooking, then drain again and pat dry.
  2. Chop and prep: Roughly chop the cooked shrimp into bite-size pieces. Halve the avocado, remove the pit, and dice the flesh. Chop the cilantro leaves and tender stems. Thinly slice the scallions, using both white and green parts. Juice the limes.
  3. Toss the filling: In a large bowl, combine the chopped shrimp, diced avocado, lime juice, cilantro, scallions, olive oil, and salt. Fold gently with a spatula so the avocado stays in distinct pieces rather than mashing into the mixture. Taste and adjust the salt and lime.
  4. Prep the cups: Separate the romaine into whole leaves, rinse under cold water, and dry them well by patting with a towel or spinning in a salad spinner so the filling does not slide out.
  5. Fill and serve: Just before serving, spoon the shrimp and avocado filling into the center of each romaine leaf. Serve right away while the leaves are cold and crisp.
Nutrition Facts
4 servings per recipe
Serving size3 filled lettuce cups
Calories270
% Daily Value*
Total Fat 15g19%
Saturated Fat 2g10%
Trans Fat 0g
Cholesterol 214mg71%
Sodium 305mg13%
Total Carbohydrate 9g3%
Dietary Fiber 5g18%
Total Sugars 2g
Includes 0g Added Sugars 0%
Protein 29g
Vitamin D 0.1mcg1%
Calcium 119mg9%
Iron 1.8mg10%
Potassium 750mg16%
* Percent Daily Values are based on a 2,000 calorie diet. Values are computed from USDA FoodData Central and are estimates. Per serving (3 filled lettuce cups).

Variations

  • Mango-lime: Fold in a handful of diced ripe mango for a sweet, juicy contrast to the lime and cilantro. This adds fruit sugar.
  • Spicy kick: Add a little grated fresh ginger or horseradish to the filling for gentle heat that plays off the cool avocado, neither of which is a nightshade.
  • Cucumber crunch: Stir in finely diced cucumber for extra crispness and a fresh, watery bite that lightens the filling.
  • Cucumber and radish: Add diced cucumber and thinly sliced radish for crunch and color alongside the shrimp. Halved cherry tomatoes work too if you are not avoiding nightshades.
  • Crab swap: Replace the shrimp with cooked lump crab meat for a sweeter, more delicate filling. This changes the shellfish used.

Storage & Leftovers

Store the shrimp and avocado filling in an airtight container in the refrigerator for up to two days. A little browning on the avocado surface is normal; press a piece of plastic wrap directly onto the filling to slow it, and stir before serving.

This dish is meant to be eaten cold and does not reheat, since warming it would soften the avocado and wilt the leaves. If the filling has been sitting, just give it a gentle stir and a fresh squeeze of lime to brighten it back up before spooning into the cups.

To make ahead, prepare the shrimp, cilantro and scallions and keep them chilled, but dice the avocado and add the lime juice and oil only when you are close to serving. Store the washed, dried romaine leaves separately wrapped in a towel, and assemble at the last minute so the cups stay crisp.

Notes & Tips

A few small things make the difference between a crisp, bright lettuce cup and a soggy one.
  • Buy the right shrimp: If starting from raw, a medium size cooks quickly and chops neatly; if buying pre-cooked, choose ones that smell clean and sweet, not fishy, and pat them very dry before mixing.
  • Pick a ripe avocado: Choose one that yields slightly to gentle pressure but is not mushy; too firm and it will not turn creamy, too soft and it will mash into the filling.
  • Add the avocado last: Fold it in after everything else is combined so it holds its shape and the lime coats it right away, which also helps keep it green.
  • Use the inner leaves: The smaller, cupped inner romaine leaves hold filling better than the large flat outer ones; save the outer leaves for a salad.
  • Adjust seasoning at the end: Avocado mutes salt and acid, so taste after mixing and add a little more salt or lime until the flavors pop.
  • Serve cold and crisp: Keep both the filling and the leaves chilled until the moment you assemble, and fill the cups only right before eating so they stay crunchy.

Nutrition & Mindful Eating

Cool, crisp and citrus-bright, this is a lunch you build with your hands. Warm shrimp, soft avocado and cold romaine leaves in the same bite, with lime and cilantro running through all of it.
  • Shrimp, avocado and romaine give you three temperatures and three textures in one mouthful. The shrimp are warm and springy, the avocado is cool and soft, and the lettuce is cold and snapping, which is most of the pleasure here.
  • Shrimp cook in about two minutes and turn from gray to pink and firm, curling as they go. They are dense in protein for their size, which is what gives a handful of small cups the weight of a real lunch.
  • Avocado does the work of a dressing here, going creamy against the shrimp and carrying monounsaturated fat that helps your body take up the color pigments in the vegetables around it.
  • Romaine hearts are the right leaf for this. They are stiff enough to hold a spoonful and mostly water, so they stay cold and loud under your teeth right through lunch.
  • Lime juice, cilantro and sliced scallions go on at the end so they stay raw and sharp, and a little salt over the shrimp pulls their sweetness forward.
  • As you eat, take them one cup at a time and feel the cold snap of the leaf against the warm shrimp, letting the pace of eating with your hands slow the whole lunch down.

Frequently Asked Questions

Can I use frozen shrimp?

Yes. Thaw them overnight in the refrigerator or under cold running water, then cook from raw or drain well if they are already cooked, and pat them thoroughly dry so the filling is not watery.

How do I keep the avocado from browning?

The lime juice in the recipe helps a lot. Fold the avocado in right after cutting so it gets coated quickly, and if storing, press plastic wrap directly onto the surface of the filling to limit contact with air.

Can I make this ahead for a party?

Prepare the filling but hold off on adding the diced avocado and lime until close to serving, and keep the washed romaine leaves wrapped separately. Assemble the cups just before guests arrive so the leaves stay crisp.

What can I use instead of romaine?

Butter lettuce or small Bibb leaves make excellent cups with a softer bite, and endive spears work well for smaller, sturdier portions.