Tomato and tuna salad

Ingredients:

A pinch of mustard powder3 tablespoons of olive oil1 tablespoon of wine vinegatr1 lettuce, washed and chopped1 can of tuna chunks, drained2 tomatoes peeled and dicedHalf a can of cooked corn50 g cold cooked beansSalt and ground black pepper to taste

Preparation:

 Make a dressing with the salt, the pepper, the mustard, the oil and the wine vinegar.

Place the lettuce in a bowl and add the tuna, tomatoes, corn and the beans.

Spray well with the dressing and mix well.

Optional: Add bread cubes and diced cheese.