Mexican Casserole with vegetables

2 tablespoons vegetable oil 3/4 pound cubed skinless, boneless chicken breast meat 1/2 (1.25 ounce) package taco seasoning mix 1 (15 ounce) can black beans,[...]

12 ounces vegetarian ground beef (I use Morning Star Farms "Meal Starters") 2 cups cooked brown rice 2 cups mixed vegetables (defrosted) 1 (1 1/2 ounce)[...]

1 cup basmati rice (uncooked) 2 cups water 1 tablespoon olive oil 1 red pepper, chopped 1 poblano pepper, chopped 1 red onion , chopped 1 (12 ounce) can black[...]