Zucchini Au Gratin - cooking recipe

Ingredients

4 Tbsp. butter
4 c. thinly sliced squash (don't peel)
1 small onion, sliced
1 tsp. salt
1/8 tsp. pepper
2 small tomatoes, peeled and sliced
1/2 c. shredded sharp cheese

Preparation

Heat butter in skillet. Add ingredients, except cheese.
Cover and cook about 15 minutes. Add cheese.
Heat until cheese is melted.
Serves 4 or more.