Keto Shrimp and Crab Stuffed Avocados – Fresh, Creamy, and Low-Carb

If you’re craving something creamy, bright, and satisfying without the carb crash, these Keto Shrimp and Crab Stuffed Avocados hit the spot. They’re quick to make, full of flavor, and look special enough for guests. Think buttery avocado halves piled high with tender shrimp, sweet crab, and a zesty, herbed dressing.

You get protein, healthy fats, and crunch in every bite. This is the kind of recipe that feels indulgent, but still supports your goals.

Why This Recipe Works

This dish balances rich and light elements in a way that keeps you satisfied. Avocado brings healthy fats and a creamy base that pairs perfectly with briny seafood.

A simple lemon-garlic dressing ties everything together without sugar or heavy fillers. Plus, it’s a no-fuss recipe—minimal cooking, easy cleanup, and ready in under 30 minutes.

It’s also flexible. Use fresh or frozen shrimp, canned or fresh crab, and your favorite herbs.

You can scale it for meal prep or make a single serving for a quick lunch. The flavors feel bright and clean, but the texture makes it feel like comfort food.

Shopping List

• Avocados (3 ripe, medium to large)
• Cooked shrimp (8–10 oz, peeled, deveined, chopped into bite-size pieces)
• Lump crab meat (6–8 oz; fresh, pasteurized, or high-quality canned)
• Celery (1 rib, finely diced)
• Red onion or shallot (2–3 tbsp, finely minced)
• Cucumber (1/2 cup, seeded and finely diced; optional for crunch)
• Fresh herbs (2–3 tbsp total: parsley, dill, or cilantro)
• Mayonnaise (3–4 tbsp; avocado oil mayo works well)
• Greek yogurt or sour cream (1–2 tbsp; optional for extra tang)
• Lemon (1–2, for juice and zest)
• Dijon mustard (1 tsp)
• Garlic (1 small clove, finely grated or minced)
• Olive oil (1–2 tsp)
• Salt and black pepper (to taste)
• Old Bay or paprika (a pinch, optional)
• Hot sauce (optional, a few dashes)
• Lime (optional, for serving)

Instructions

1. Prep the seafood. If using raw shrimp, poach gently in salted simmering water for 2–3 minutes until opaque, then drain and chill. Chop shrimp into bite-size pieces.
   

   Pick through crab to remove any shell fragments.

2. Make the dressing. In a bowl, whisk mayonnaise, Greek yogurt or sour cream (if using), lemon juice (about 2 tbsp), lemon zest (1/2 tsp), Dijon, garlic, olive oil, salt, and pepper. Add a pinch of Old Bay or paprika if you like.
3. Fold in the mix-ins. Add celery, onion or shallot, cucumber (if using), and herbs. Stir to combine.
   

   Gently fold in shrimp and crab so you don’t break up the crab too much. Taste and adjust seasoning with more lemon, salt, or hot sauce.

4. Prep the avocados. Halve the avocados, remove pits, and gently loosen the flesh from the skin with a spoon. You can scoop out a little extra to create a larger well.
   

   Sprinkle the cut sides with salt and a squeeze of lemon or lime to prevent browning.

5. Assemble. Spoon the shrimp and crab mixture generously into each avocado half, mounding it slightly.
6. Finish and serve. Top with extra herbs, a pinch of paprika, and a final squeeze of lemon. Serve chilled or at cool room temperature.

Keeping It Fresh

To prevent browning, toss avocado halves with lemon or lime juice before stuffing. If you’re prepping ahead, store the seafood mixture in an airtight container for up to 2 days and fill the avocados just before serving.

Press plastic wrap directly onto the surface of the filling to limit air exposure.

Leftovers will keep for about 24 hours, but the avocado may darken. It’s still safe if stored properly, just not as pretty. If you expect leftovers, serve the filling scooped over a bed of greens and add fresh avocado right before eating.

Benefits of This Recipe

• Keto-friendly: Low in carbs, high in healthy fats from avocado, and protein-rich seafood.
• Quick and simple: Minimal cooking, easy to scale, and weeknight-friendly.
• Nutrient-dense: Avocado brings fiber, potassium, and monounsaturated fats; shrimp and crab add lean protein, selenium, and B12.
• Versatile: Swap herbs, adjust heat with hot sauce, or add spice blends to match your taste.
• Entertaining-ready: Looks impressive but requires little effort.

What Not to Do

• Don’t overcook the shrimp. Rubbery shrimp will ruin the texture.
  

  Poach gently and pull them as soon as they turn opaque.

• Don’t skip acidity. Lemon or lime brightens the richness and keeps flavors balanced.
• Don’t use watery cucumbers. If adding cucumber, seed it first to avoid thinning the dressing.
• Don’t overdress the filling. You want it creamy, not soupy. Start with less dressing and add more as needed.
• Don’t assemble too early. Avocados brown over time—fill them close to serving for the best look and taste.

Alternatives

• No crab? Use all shrimp, or swap in lump white fish or canned tuna packed in water.
• Dairy-free. Skip the yogurt or sour cream and use all mayo with extra lemon for tang.
• Spice it up. Add diced jalapeño, chipotle powder, or a little sriracha.
• Herb swaps. Dill and parsley are classic; cilantro works great if you’re going for a brighter profile.
• Citrus twist. Lime instead of lemon gives a more tropical note—great with cilantro and a pinch of cumin.
• Crunch options. Use finely chopped bell pepper, radish, or toasted pumpkin seeds for texture while keeping carbs low.

FAQ

Can I use canned crab and frozen shrimp?

Yes. Drain canned crab well and gently squeeze out excess moisture.

Thaw frozen shrimp completely, pat dry, and cook briefly. The key is removing extra water so the filling stays creamy.

Is this recipe good for meal prep?

Partially. Make the seafood mixture up to 2 days ahead and store it airtight in the fridge.

Cut and fill avocados right before serving to avoid browning and texture changes.

How many carbs are in a serving?

It varies by portion and brands, but typically you’ll be around 6–9 net carbs per stuffed avocado half, mostly from the avocado and veggies. Using low-carb mayo and skipping sweet ingredients keeps it keto-friendly.

What if my avocados are underripe?

Let them ripen at room temperature in a paper bag for 1–2 days. If you must serve now, mash the avocado you scooped out with extra lemon and olive oil to soften the texture, then fill as usual.

Can I make it without mayonnaise?

Use mashed avocado, Greek yogurt, and olive oil with lemon and Dijon to create a creamy base.

It will be tangier and slightly lighter but still delicious.

What protein substitutes work well?

Cooked salmon, chopped lobster, or even rotisserie chicken work if you’re not strictly seafood-focused. Keep the dressing the same and adjust salt to taste.

How do I serve this for a party?

Make mini portions by spooning the filling into avocado wedges or onto cucumber rounds. Garnish with herbs and a dusting of paprika for color.

Can I add cheese?

Sure.

A little grated Parmesan or crumbled cotija can add a salty punch. Go light so it doesn’t overpower the seafood.

Wrapping Up

Keto Shrimp and Crab Stuffed Avocados bring together fresh flavors, satisfying texture, and simple prep in one vibrant dish. They’re perfect for quick lunches, casual dinners, or a party platter that feels elevated.

Keep the seasoning bright, the shrimp tender, and the avocados fresh, and you’ll have a go-to recipe that checks all the boxes. Enjoy it as is, or tweak the herbs and heat to make it your own.