A nicer recipe is for a Cuban dish called picadillo, similar to a sloppy joe, but you can eitehr put it on rolls or eat it with rice.
Saute your chopped meat and drain.
Saute chopped red onion and garlic in olive oil, along with some cumin, oregano, and chopped green bell pepper.
Add an 8 oz. can of tomato sauce, as well as about half a jar of Spanish green olives with pimientos, along with some of their brine, some pepper, a little salt, and some raisins and wine.
Bring to the boil and reduce to a simmer, and let cook for 30 minutes over medium heat.
Serve on rolls, or with white rice and black beans, and some fried plantains.