Create four large rectangles of heavy duty foil. Mist with cooking spray.
Stir together the minute rice, water, and 1 tablespoon of the fajita seasoning in a pot. Cook according to the directions on the rice box.
Combine the chicken, sliced peppers, onion, remaining fajita seasoning, and lime juice in a large bowl. Toss to evenly coat and combine.
Divide the rice between the foil rectangles. Top with your chicken mixture. Fold up the sides to create your packet.
At home cooking: Bake at 400 degrees for 25 minutes