Mac and Cheese

As requested....Mac and Cheese! I do not have a formal recipe for this dish....It is one of those "till it looks right" and "make do with what you have" dishes. So this is how I make it...

Melt about 1/2 a stick of butter in a sauce pan, when melted add about 1/2 a small chopped onion and cook until tender. Then stir in 2 heaping spoons of flour, stir until completly combined. Then add enough milk to make it a thick sauce.(I would guess about 2 cups...but I just pour until it looks right) When thick, add any combo of cheese you have on hand. I always put in some velveeta and then add what ever else you have on hand(pepper jack is a favorite of ours). Season with black pepper and red pepper and salt. Place cooked pasta into a buttered bakin dish, top with cheese sauce then with a little grated cheese and/or bread crumbs. Cook until bubbly and brown around the edges. Yummy hot out of the oven...or reheated the next day! Works great as a freezer dish......freeze before baking!