Picadillo without pimiento

1 teaspoon olive oil 3/4 cup chopped onion 2 teaspoons minced garlic 1 pound 90% lean ground sirloin 2 teaspoons dried oregano 2 teaspoons ground cumin 1[...]

3 tablespoons olive oil or vegetable oil 2 pounds ground beef, lean 1 large onion finely chopped 1 each garlic clove finely chopped 3 medium tomatoes and 2[...]