Zucchini or Yellow Squash Casserole

1 medium bell pepper, cut in 1/2 in cubes
1/4 cup margarine
1 medium onion, diced
2 medium zucchini or 4 small yellow squash
1 (16 ounce) cans tomatoes
4 slices bread, toasted and cut in small cubes
1 teaspoon salt
1/4 teaspoon pepper
1/4 teaspoon garlic salt
1/2 teaspoon oregano
parmesan cheese
Saute onions & bell pepper in margarine for 5 minutes,add squash that has been sliced and cubed.
Saute 5 min more,add tomatoes, (break up whole tomatoes) cook 5 more minutes.
Add bread cubes and seasonings.
Put in 2 quart casserole,sprinkle top with parmesan cheese.
Bake at 350 for 30 to 40 minutes.