1 to 1.5 pounds sirloin steak (or other steak), cut into thin 2-inch strips
1-2 Tablespoons oil
2 onions, sliced into 2-to-3-inch slices
1 large clove garlic, minced
2 tomatoes, diced
1 green bell pepper, sliced into thin, 2-inch slices
1 red bell pepper, sliced into thin, 2-inch slices
1 yellow bell pepper, sliced into thin, 2-inch slices
1 cup beef broth
1/2 teaspoon salt
2 Tablespoons soy sauce
1/2 cup cold water
2 Tablespoons cornstarch
3-4 cups of hot cooked rice