Meatball Skillet Meal

1/2 cup finely chopped fresh mushrooms

1/3 cup quick-cooking oats

2 tablespoons finely chopped green pepper

2 tablespoons finely chopped onion

2 tablespoons dried parsley flakes

1 teaspoon dried basil

1 teaspoon dried oregano

1/2 teaspoon dried thyme

1/2 teaspoon salt

1/4 teaspoon pepper

1 pound ground beef

4 medium carrots -- sliced

1 small zucchini -- sliced

14 1/2 ounces diced tomatoes -- undrained

4 cups hot cooked rice