Recipes Diets we supportDiets Start your planStart plan

Tuna-Stuffed Baked Avocado with Egg

Ripe avocado halves cradle lemony canned tuna and a baked egg, finished with snipped chives and a dusting of paprika for a warm, creamy, spoon-from-the-skin breakfast.

By Camille McLaughlin, RDN, LD, registered dietitian nutritionist

Built forPescatarianBreakfast
Also fits Heart-Healthy Balanced Paleo Gut-Health High-Protein Keto Low-Carb Anti-Inflammatory Mediterranean High-Fiber GLP-1 Whole30
Avocado halves go soft and buttery in the oven with an egg set right into the hollow. Lemony tuna keeps its savory flake underneath, paprika dusted over turns the tops warm orange, and snipped chives at the end make it worth eating straight from the skin with a spoon.
↓ Jump to Recipe

Why You'll Love This Recipe

This is a warm, one-and-done breakfast for anyone who wants something creamy and filling without leaning on bread, cereal, or a stack of pans. It comes together from mostly pantry and fridge staples like avocados, canned tuna, and eggs, so it suits a busy morning when you still want a real, sit-down plate. It is built around fats and protein, which makes it a good fit for people who feel steadier through the morning when breakfast is savory rather than sweet.

The avocado itself is the baking vessel. Widening the well gives the egg a cradle so the white sets around the tuna instead of running off, and the gentle oven heat softens the avocado to a spoonable, custardy texture rather than the firm raw flesh you get from a salad. The lemon juice does real work here: it brightens the canned tuna and keeps the avocado from tasting flat, while the paprika and chives added at the end give color and a fresh, oniony lift without cooking away.

The plate is satisfying because it combines three things that keep you full: the rich, monounsaturated fat of the avocado, the protein of the tuna and egg, and the fiber in the avocado flesh. That mix slows digestion and helps a small-looking portion eat larger than it looks. It is also nourishing: you get long-chain omega-3s from the fish, high-quality protein from the egg, and potassium and fiber from the avocado, all in a dish you eat with a spoon.

Baked avocado halves with set egg and flaked tuna, dusted with paprika and chives. Save
Prep: 10 minsCook: 15 minsTotal: 25 minsMakes: 4 servingsServing: 2 stuffed avocado halves

Ingredients

Serves4Amounts change with the number. The nutrition panel is per serving, so it stays the same.
  • 4 ripe avocados, halved and pitted
  • 2 cans tuna in water (about 320 g), drained
  • 8 small eggs
  • 1 tbsp lemon juice
  • 3 tbsp chives, snipped
  • 3/4 tsp paprika
  • 1/4 tsp salt

Instructions

  1. Preheat and prepare the avocados: Preheat the oven to 400°F (200°C). Halve each avocado lengthwise and remove the pit. Using a spoon, scoop out a little flesh from around each pit cavity to widen the well so it can hold both the tuna and an egg without overflowing; reserve the scooped flesh for another use.
  2. Steady the avocado halves: Set the avocado halves cut-side up in a baking dish. To keep them from tipping and to hold the egg in place, shape small rings of crumpled foil and tuck each half into a ring, or press the halves snugly against one another so they sit level.
  3. Season and fill with tuna: Drain the canned tuna well, pressing out the excess liquid. In a bowl, flake the tuna with a fork and stir in the lemon juice and salt until evenly combined. Press a spoonful of the tuna into the bottom of each avocado well, leaving room at the top for the egg.
  4. Add the egg: Crack one small egg into each avocado half, letting the white and yolk settle over the tuna. Keep the eggs small so they fit the wells; if a white threatens to overflow, spoon a little of it off before baking.
  5. Bake until the whites are set: Carefully transfer the dish to the oven and bake for 12 to 15 minutes, until the egg whites are fully opaque and set and the yolks are cooked to your liking. The avocado will be warmed through and soft.
  6. Garnish and serve: While the eggs bake, snip the chives. Remove the dish from the oven, dust each half with paprika, and garnish with the chives. Serve warm, two halves per plate, with a spoon to scoop straight from the skin.
Nutrition Facts
4 servings per recipe
Serving size2 stuffed avocado halves
Calories399
% Daily Value*
Total Fat 25g32%
Saturated Fat 5g27%
Trans Fat 0g
Cholesterol 401mg134%
Sodium 492mg21%
Total Carbohydrate 10g4%
Dietary Fiber 7g25%
Total Sugars 1g
Includes 0g Added Sugars 0%
Protein 35g
Vitamin D 3.4mcg17%
Calcium 81mg6%
Iron 3.6mg20%
Potassium 835mg18%
* Percent Daily Values are based on a 2,000 calorie diet. Values are computed from USDA FoodData Central and are estimates. Per serving (2 stuffed avocado halves).

Variations

  • Smoky heat: Swap some of the sweet paprika for smoked paprika, or add a pinch of cayenne to the tuna, for a warmer, smokier finish.
  • Everything-spiced: Sprinkle an everything-bagel seasoning blend over the tops before baking for extra crunch and a garlic-onion note; check the blend's salt so the dish does not turn out too salty.
  • Herbed and bright: Fold chopped fresh dill or flat-leaf parsley into the tuna along with the lemon juice for a greener, more herbaceous version.
  • Creamy binder: Bind the tuna with a spoonful of plain Greek yogurt before filling for a softer, richer texture; note that this adds dairy.
  • Cheesy top: Grate a little sharp cheese over the egg for the last few minutes of baking so it melts into a golden crust; note that this adds dairy.

Storage & Leftovers

Store leftover baked halves in an airtight container in the refrigerator for up to two days. The avocado will darken a little where it is exposed to air; a squeeze of extra lemon juice over the cut surface before storing helps slow the browning.

Reheat gently so the egg does not turn rubbery. Warm a half in the microwave in short bursts of about twenty seconds, or set it in a low oven just until heated through. Avoid a hard, high reheat, which overcooks the yolk and can make the warmed avocado bitter.

To get ahead, mix the tuna with the lemon juice and salt a day in advance and keep it covered in the fridge. Halve, pit, and fill the avocados with the tuna just before baking, since cut avocado does not hold well raw overnight; that way the only fresh step in the morning is cracking the eggs and baking.

Notes & Tips

A few practical notes to help this come out clean, set, and full of flavor every time.
  • Pick avocados that yield slightly: Choose fruit that gives to gentle pressure but is not mushy. Rock-hard avocados will not soften enough in the short bake, and overripe ones collapse and taste bitter once warmed.
  • Widen the well generously: A raw avocado half rarely has room for a whole egg. Scoop out enough flesh to make a real bowl, and save the scooped pieces to mash onto toast or stir into the tuna.
  • Use small eggs on purpose: Small eggs are specified because they fit the well without spilling. If you only have large eggs, beat one and pour just enough into each half to fill the well rather than cracking a whole one in.
  • Steady them so nothing spills: Foil rings or tucking the halves tightly together keeps them level; a tilted avocado lets the raw white run out onto the pan before it sets.
  • Judge doneness by the white: The egg is ready when the white is fully opaque with no clear, jiggly patches. Pull them a touch early if you like a runny yolk, since the residual heat keeps cooking them.
  • Serve with something crisp: The dish is soft and rich throughout, so a side of crisp cucumber, a handful of cherry tomatoes, or a few leaves of dressed greens adds contrast and freshness.

Nutrition & Mindful Eating

Baking an avocado changes it. The flesh goes warm and custardy around the tuna and the egg, and the lemon and chives keep all that richness awake.
  • Avocado, tuna and egg come together in one shell here. The avocado turns soft and buttery in the oven, the tuna keeps its savory flake, and the egg sets on top so the whole thing holds together on a spoon.
  • Avocado is the bowl and the sauce at once. Heat brings out its buttery side, and the monounsaturated fat and potassium it carries are part of why a half feels like more food than it looks.
  • Tuna gives the filling its savory backbone, firm and briny in the best way, and it brings protein along with the omega-3 fats that oily fish are known for.
  • The egg cracked into the well sets into a soft, just-firm layer that spoons up with the avocado, and the yolk carries choline along with the color that makes the whole dish look like breakfast.
  • Lemon juice and a scatter of chives go on at the end, so the acid stays sharp and the onion note stays green. The paprika dusted over the top is what you smell first when the pan comes out.
  • As you eat, take it slowly with a spoon straight from the skin, noticing how the warm avocado gives way against the flake of the tuna, and let the richness tell you when you have had enough.

Frequently Asked Questions

Can I use tuna packed in oil instead of water?

Yes. Oil-packed tuna is richer and more tender; just drain it well so the filling is not greasy. It will add more fat than the water-packed version, so keep that in mind if you are watching total fat.

My egg white ran over the side. What went wrong?

Usually the well was too small or the half was tilted. Scoop out more flesh to make a deeper bowl, keep the eggs small, and steady each half with a foil ring so it bakes level. You can also spoon off some of the white before baking.

Can I make this without the egg?

Yes. Skip the egg and simply warm the tuna-filled avocado halves in the oven for a few minutes, or serve them without baking at all. You will lose some protein, so you may want a side of protein alongside.

How do I keep the avocado from tasting bitter?

Bitterness comes from overcooking. Keep the bake short, pull the halves as soon as the whites set, and use ripe but not overripe fruit. The lemon juice also helps balance any bitter note.