Perfect and filling lunch.
Step: 1
Mix tuna, onion, mustard, mayonnaise, relish, salt, and pepper together in a small bowl.
Step: 2
Put mixture on top of the avocado and garnish with bagel seasoning.
Per Serving: 517 calories; protein 36g; carbohydrates 18.6g; fat 28.1g; cholesterol 43mg; sodium 1736.2mg.