If you’re looking for a fast, flavorful, and keto-friendly lunch or light dinner, tuna-stuffed avocados are hard to beat. This recipe combines creamy avocado, protein-rich tuna, and a crisp, zesty filling for a meal that’s satisfying, low in carbs, and loaded with healthy fats and micronutrients. Below you’ll find an easy recipe, step-by-step instructions, tips, and clear nutrition information tailored for low-carb and keto eaters.

Why tuna-stuffed avocados?

• Fast to prepare — ready in about 10 minutes.
• High in healthy monounsaturated fats and omega-3s (from avocado and tuna).
• Low net carbs, making it ideal for keto and low-carb diets.
• Versatile: swap herbs, add crunch, or turn it into a salad.

Ingredients (makes 4 stuffed halves / 4 servings)

• 1 (5 oz / ~140 g) can tuna in water, drained (about 120 g drained)
• 2 medium Hass avocados (about 150 g edible flesh each; total 300 g flesh)
• 3 tbsp full‑fat mayonnaise (about 45 g)
• 2 tbsp red onion, finely minced (about 20 g)
• 2 tbsp celery, finely chopped (about 20 g)
• 1 tbsp lemon juice (about 15 g)
• 1 tsp Dijon mustard (about 5 g)
• 1 tbsp capers, drained (about 9 g) — optional
• Salt and freshly ground black pepper, to taste
• Fresh chives or parsley for garnish
• Optional: pinch paprika or smoked paprika for topping

Simple preparation (10 minutes)

1. Halve the avocados, remove the pits, and scoop a small amount of flesh from each cavity to widen it slightly (reserve the scooped flesh if you like).
2. In a bowl, combine drained tuna, mayonnaise, red onion, celery, lemon juice, Dijon mustard, and capers. Mix until evenly combined. Season with salt and pepper.
3. Spoon the tuna mixture into each avocado half, dividing it evenly (about 1/4 of the mixture per half).
4. Garnish with chives or parsley and a pinch of paprika if desired. Serve immediately.

Storage and make-ahead tips

• Assemble the tuna filling up to 24 hours ahead and refrigerate in an airtight container.
• Avocados brown quickly—if making ahead, keep halves and filling separate and assemble just before serving. A light squeeze of lemon juice inside the avocado cavity helps slow browning.

Variations and add-ins

• Swap mayonnaise for Greek yogurt (adds protein but raises carbs slightly).
• Add a few chopped dill pickles or a teaspoon of horseradish for tang.
• Mix in chopped hard-boiled egg for extra richness.
• For more crunch, top with chopped toasted almonds or sunflower seeds (watch carbs).

Nutritional information (approximate, per serving)
Note: This recipe yields 4 stuffed avocado halves (4 servings). Nutrition values are estimates based on common ingredient values; actual values vary by brands and avocado size.

Per serving (1 stuffed avocado half):

• Calories: ~235 kcal
• Total carbohydrates: ~7.5 g
• Dietary fiber: ~5.3 g
• Sugar alcohols: 0.0 g
• Net carbs (Total carbs − fiber − sugar alcohols): ~2.3 g
• Protein: ~9.6 g
• Total fat: ~19.6 g
• Sugars: ~0.8 g
• Sodium: variable (depends on canned tuna, capers, and added salt)

Keto/Low-carb explanation
Because this recipe is high in fiber (mostly from the avocado), net carbs are very low—around 2–3 grams per stuffed half—making tuna-stuffed avocados an excellent option for ketogenic and low-carb meal plans. Sugar alcohols are effectively zero in these ingredients, so they don’t change the net-carb count.

Health highlights

• Avocado: rich in monounsaturated fats, potassium, vitamin K, folate, and fiber.
• Tuna: lean protein and a good source of omega‑3 fatty acids (particularly if you use tuna packed in oil or choose fatty fish variants).
• Minimal processed ingredients: easy to keep whole-food and low-carb.

Final tips

• For the creamiest filling, use full-fat mayonnaise. For a lighter or higher-protein version, substitute part or all of the mayo with plain full‑fat Greek yogurt.
• If you’re tracking macros closely, weigh your avocados and use the exact mayo and tuna brand nutrition labels to refine values.
• Serve with a side salad or extra greens for a larger meal while keeping carbs low.

Tuna-stuffed avocados are a speedy, nutritious, and satisfying choice whether you’re meal-prepping for the week or need a quick keto-friendly lunch. Give this simple recipe a try and customize it to your taste — it’s an easy way to eat well without sacrificing flavor.