Preheat your oven to 400 degrees Fahrenheit. Spray a 1 1/2 quart baking dish with cooking spray and set aside.
Cook the noodles according to package instructions.
2 1/2 cups dry egg noodles
Mix the condensed soup, milk, tuna, salt, and pepper together in the prepared casserole dish. Then stir in the peas and the cooked noodles. Put the casserole in the oven.
10 ounces condensed cream of mushroom soup, 1/2 cup milk, 10 ounces canned tuna in water, 1/2 teaspoon salt, 1/4 teaspoon black pepper, 1 cup frozen peas
While the casserole bakes, break down your bread and toss with melted butter. (See note about making this with crackers.)
2 slices white bread, 1 tablespoon melted better
Bake for 20 minutes. Top with bread and butter mixture and bake for 5 more minutes or until the bread is golden brown. Serve and enjoy!