3 med. zucchini squash
2 to 3 med. yellow squash
2 tbsp. butter
1/4 c. chopped onion
8 oz. can tomato sauce
1/4 to 1/2 tsp. oregano
1/2 tsp. salt
Pepper to taste
1 c. shredded Mozzarella cheese

Slice squash thinly. Saute onion in butter. Mix this and all other ingredients, except cheese. Toss with squash. Put in buttered 2 quart casserole. Top with cheese. Bake at 375 degrees about 30 minutes.