Tuna Noodle Casserole

1 box of bow tie pasta
2 tbsp butter
2 tbsp flour
3 C milk
1 tsp garlic
1 tsp pepper
1 medium onion, chopped
1 1/2 C mushrooms, copped
1 1/2 C frozen peas
10 oz canned tuna, drained
1 1/2 C shredded colby jack cheese

Preheat oven to 375. Cook pasta according to the directions on the box. Set aside. Melt butter in a medium saucepan.Once the butter is melted slowly add the flour sirring constantly. Slowly add milk, again stirring constantly to prevent lumps. Continue sirring until sauce begins to boil. Add garlic, pepper, onion and mushrooms. Turn down sauce to a low simmer for 10 minutes. Add peas and cook for an additional 2 minutes. Add tuna and pasta. Mix well. Spray a 9x13 pan and add 1/2 the pasta mixture. Spread 1/2 the cheese on top of the pasta. Add the rest of the pasta and top with the remaining cheese. Bake for 30 minutes.