How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Open Faced Tuna Sandwiches?

You need 10 ingredients. The key ingredients include: 1 can tuna in oil, drained, flaked, 1 cup unpeeled, chopped apple, 3 tbsp. finely chopped onion, 1/4 cup finely chopped walnuts, and more.

Is Open Faced Tuna Sandwiches suitable as seafood?

Yes, Open Faced Tuna Sandwiches falls under the Seafood category and is a great choice for this type of meal.

How do I store leftover Open Faced Tuna Sandwiches?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Open Faced Tuna Sandwiches Recipe

Name: Open Faced Tuna Sandwiches
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 can tuna in oil, drained, flaked; 1 cup unpeeled, chopped apple; 3 tbsp. finely chopped onion; 1/4 cup finely chopped walnuts; 1/4 cup mayonnaise; 2 tsp. lemon juice; 1/4 tsp. salt; 1/8 tsp. pepper; 4 slices bread, toasted; 4 slices monterey jack cheese

Try this homemade Open Faced Tuna Sandwiches recipe the whole family will love. Made with oil, apple, onion and walnuts. Easy step-by-step instructions …

This Open Faced Tuna Sandwiches relies on simple, everyday ingredients such as tuna in oil, drained, flaked, unpeeled, chopped apple, finely chopped onion and finely chopped walnuts. It comes together quickly and makes 4 servings, at about 423 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Seafood

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Leave out the nuts to make it nut-free, or swap in seeds for a similar crunch.

No specific allergen information. Please check the ingredient list for possible allergens.

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Open Faced Tuna Sandwiches

Tips for the best results

Variations & substitutions

My Personal Notes

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