Layered Squash Casserole

2 medium yellow summer squash or zucchini 

1 1/2 pounds ground beef

1 cup onion chopped

1 cup green pepper chopped

Salt and pepper lightly

2 cups grated cheddar, divided

3/4 cup milk

3 eggs

3 tablespoons flour

1 small can tomato sauce

1/2 to 3/4 cup French fried onions (optional)

Preheat oven to 350 degrees.  Peel and slice squash in about 1/2 inch slices.  Brown ground beef and add onion and pepper to soften.  Sprinkle with salt and pepper.  On bottom of a medium casserole dish place a layer of squash, overlapping a little.  Sprinkle over that, 1 cup of cheese.  Next put 1/2 the meat mixture.  Repeat all 3 layers.  In small bowl whisk together milk, eggs and flour.  Pour over casserole.  Spread tomato sauce over the top.  Sprinkle with French fried onions if you want.  Bake for 1 hour.