In a large skillet, brown onions, peppers, and garlic in 2 tablespoons of butter. Add tomatoes and simmer 5 minutes.
In a medium saucepan melt remaining 6 tablespoons of butter. Add flour and stir until lightly browned. Add milk slowly, stirring constantly until thick. Season with salt and pepper.
Blend white sauce with tomato mixture.
In a greased 2 quart casserole dish, alternate layers of sliced eggs, tomato mixture, and cracker crumbs. You should have 3 layers, ending with the crumbs.
Bake at 350 degrees for 30 minutes.
