Step 1

Cook spaghetti according to package directions in salted water.

Step 2

Melt butter in a large skillet. Add onion and mushrooms and cook until onion is soft and mushrooms are browned.

Step 3

Add soup, milk, and both peppers to the skillet and mix well.

Step 4

Add ham, peas, cheddar cheese, and Parmesan cheese and stir and cook over medium heat until cheese is melted. Season to taste with salt.

Step 5

Add drained pasta to the pan and mix well.