Really Good Macaroni Tuna and Egg Casserole

This is one of my favorite recipes!

Ingredients:
1 cup elbow macaroni, cooked and drained
1/2 cup red onion
1/4 chopped green pepper
1 cup milk
1 can cream of mushroom soup
2 tablespoon butter
2 tablespoon flour
1 cup frozen mixed vegetables
1 large can or bag drained, flaked tuna
3 hard boiled eggs, coarsely chopped
salt and pepper to taste
Bread crumbs

Directions:
Butter a casserole dish and coat with bread crumbs,
Put butter in a large skillet over medium heat;
add onions and peppers. Cook until onions are softened.
Add flour, milk and soup; stir until thickened.
Add vegetables, tuna, mixed vegetables,
chopped eggs, and cooked macaroni.
Taste and add salt and pepper.
Put this in prepared casserole,
bake for 30 minutes at 350 degrees F.
or until bubbly and browned.