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Homemade tuna avocado sandwich recipe cut in half on a plate with lettuce and tomato, taken from above on a white kitchen counter.

Tuna Avocado Sandwich Recipe

A quick and healthy tuna avocado sandwich ready in just 10 minutes! Creamy avocado replaces mayo for a lighter, protein-packed lunch that’s perfect for busy days.
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Course: Light Dinner, LUNCH, Snack
Cuisine: American, Mediterranean
Prep Time: 10 minutes
Total Time: 10 minutes
Servings: 2 sandwiches
Calories: 420kcal
Cost: $6

Equipment

  • 1 Medium mixing bowl For mixing tuna and avocado
  • 1 Fork For mashing tuna and avocado
  • 1 Sharp knife For cutting avocado, onion, and vegetables
  • 1 Cutting board Plastic or wood
  • 1 Can opener To open tuna cans
  • 1 Toaster or pan Optional, for toasting bread

Ingredients

Main Ingredients

  • 2 cans (5 oz each) Tuna in water Drained
  • 1 large Ripe avocado Slightly soft, not mushy
  • 2 tablespoon Lemon juice Fresh
  • ¼ cup Red onion Diced (or substitute green onions)
  • ¼ cup Celery Diced (or cucumber for extra freshness)
  • Salt and pepper To taste
  • 4 slices Whole wheat bread Or sourdough/ciabatta/wraps
  • 2–4 leaves Lettuce Romaine or butter lettuce
  • 2–3 slices Tomato Ripe and juicy
  • Cucumber, sprouts, pickles Optional – For extra crunch and flavor

Instructions

  • Prepare ingredients
  • Mash tuna and avocado
  • Mix with onion, celery, lemon juice
  • Season with salt & pepper
  • Toast bread (optional)
  • Assemble sandwich

Notes

  • Nutrition information is automatically calculated, so should only be used as an approximation.

Nutrition

Serving: 250g | Calories: 420kcal | Carbohydrates: 32g | Protein: 28g | Fat: 20g | Saturated Fat: 3g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 10g | Cholesterol: 45mg | Sodium: 520mg | Potassium: 720mg | Fiber: 8g | Sugar: 6g | Vitamin A: 850IU | Vitamin C: 15mg | Calcium: 90mg | Iron: 3mg