Mac n' Cheese

I'm eating up the foods in the pantry which leads me to cook a lot of plain food. My fresh produce intake is lacking. However, I made this yummy mac n'cheese which turned out better than I though. I just sautéed onions in butter until soft. Then added 1 Tb. spoon of floor and made a rue with the left over half and half. I added regular cheddar and parmesan (grated and shredded). I think the parmesan is why it tasted good. Also using the “ready cut spaghetti” shape made it mix well. After mixing the macaroni inside, I sprinkled breadcrumbs on top and toasted them in the broiler. I was too lazy to bake the whole thing. I didn’t put enough salt on it seemed so I salted it with garlic sea salt.