Yummy Tuna Sandwich Yummy toasted tuna burger. By Guest Contributor May 23, 2014 Snack Preparation Time Cook Time Servings0IngredientsCan of tuna chunksburger bunsmayonnaisesalt to tasteInstructions Step 1: 1. In a bowl mix the tuna and mayo. Step 2: 2. Add in salt to taste. Step 3: 3. Mix with fork. Step 4: 4. Toast the buns in toaster or oven. Step 5: 5. Scoop some tuna onto a bun and press the other bun on top. Store the remaining tuna salad in the fridge. Remember to wrap it in saran wrap. Step 6: 6. Enjoy! Show Comments ▼