1 large onion, diced

1 tablespoon canola oil

salt to taste

optional seasonings: black pepper, oregano, cumin, coriander, chopped garlic, hot smoked paprika, chilli powder—whatever you’re in the mood for (I just used black pepper, garlic and a tablespoon of fish sauce, which gives it depth)

one 28-ounce can whole tomatoes, pureed in the can with a hand blender or in a blender blender

2 pounds lean ground beef

1 box macaroni

1 cup each grated cheddar and mozzarella cheeses