Beef with cumin

1 tablespoon extra-virgin olive oil 2 tablespoons butter 2 pounds ground chicken breast 1 large carrot, peeled and finely chopped 1 large onion, chopped 3[...]

2 teaspoons cumin seeds (reserve 1/2 for sauce) 1/2 teaspoon Mexican oregano 5 garlic cloves , peeled 1/4 medium white onion, peeled 1/8 cup cooked white rice[...]