Ingredients:
1 tablespoon olive oil or 1 tablespoon salad oil
1 medium onion, diced
1 medium yellow pepper, diced
1 medium green pepper, diced (3/4 inch pieces)
1/2 teaspoon marjoram
1/2 teaspoon salt
1/4 teaspoon pepper
2 tablespoons lemon juice
1 tablespoon Dijon mustard
1/2 teaspoon sugar
2 (6 1/2 ounce) cans solid white tuna packed in water, drained
4 small tomatoes
lettuce leaf
cracker (optional)
Directions:
1. In a 12-inch skillet, over medium heat in hot olive oil, cook onion until tender and golden. Add peppers, marjoram, salt and pepper. Over medium-high heat, cook stirring frequently, until peppers are tender. Remove skillet from heat; stir in lemon juice, mustard, and sugar until blended. Gently stir in tuna.
2. To serve cut each tomato into wedges, but not all the way through. Spooon warm tuna mixture over tomatoes and lettuce.