1)We’ve done this with sweet potatoes as well. Try rubbing your sweet potatoes in curry! They need 25 minutes. This was a treat and added just the right touch to our grilled Tandoori Chicken in the Rain!
2) You can use any veggies you like. When I’m combining 2 or 3 veggies in one foil pocket I make sure they’re ones that need equal cooking time. A good combo is sliced zucchini, mushrooms and onions!
3) You can also make a pocket for your marinated fajitas veggies and use my grilled Carne Asada steak recipe.