easy - peasy cheesy tuna casserole

Ingredients For easy - peasy cheesy tuna casserole

• 2 c

  elbow macaroni, cooked al dente (3 minute type cook works great!)
• 2 can

  cream of mushroom soup
• 1/4 c

  milk
• 2 can

  tuna, packed in water, drained and flaked
• 1 c

  frozen green peas
• 2 c

  cheddar cheese, cubed small
• salt, pepper, chopped onion to taste (optional)
• CRISPY TOPPING
• 1 1/2 c

  crushed corn flakes
• 1/4 stick

  butter