In a skillet, fry the onion and garlic. When ready, add the chopped tomato and ground beef, stirring to prevent clumping.

Add the ketchup, finely chopped chili, and beans. Let it cook well, checking the salt. It should be spicy and slightly sweet.

I microwave the buns in their bag, and the sausages too.

If you don't like chili, just add mayonnaise, ketchup, mustard, sausage, and pico de gallo (tomato, onion, and chili) to the bun.