Avocado Tuna Melts with Cucumber 'Toast'

By AislePrompt Editorial · Published 2026-04-03 · Updated 2026-04-03

A refreshing twist on tuna melt sandwiches using cucumber slices as a base for easy-to-eat, no-bread tuna bites with a creamy avocado spread. This American-inspired kid-friendly recipe, ready in about 18 minutes, pairs canned tuna, avocado, dill pickle for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 1 can (5 oz), drained canned tuna
• 1 medium, mashed avocado
• 2 tbsp, finely chopped dill pickle
• 1 tsp lemon juice
• 1 medium, sliced into 1/4-inch rounds cucumber
• 1/4 cup low-sodium shredded cheddar cheese
• 4 slices, cut into 1-inch squares whole wheat bread

The sheet pan we’d roast this on → Best Sheet Pans in 2026: Top Picks + Buying Guide

Instructions

1. Step 1: In a bowl, mix drained tuna, mashed avocado, chopped pickles, and lemon juice until well combined and creamy. Taste and adjust seasoning with a pinch of salt if needed.
2. Step 2: Arrange cucumber slices on a plate. Spread a thin layer of tuna mixture onto each slice (about 1 tbsp per slice), then top with a small square of bread.
3. Step 3: Place a thin slice of cheddar cheese on top of each bread square, then arrange the cucumber-tuna slices on a baking sheet lined with parchment paper.
4. Step 4: Broil on high for 2-3 minutes until cheese is melted and bubbly, watching closely to prevent burning. Serve immediately while warm.