beef cube recipe

Ingredients: 1 pound beef sirloin, cut into 1-inch cubes 2 tablespoons olive oil Salt and freshly ground black pepper, to taste 1 large onion, sliced 8 ounces mushrooms, sliced 2 cloves garlic, minced 1/2 cup beef broth 1 tablespoon Worcestershire sauce 1 tablespoon soy sauce 1 tablespoon butter