Preheat grill to medium.
Cut your large rainbow trout fillet in 4 sections. Leave the skin on
Next cut 4 large heavy-duty aluminum foil sections out and spray the bottom of it with a little spray oil or drizzle a little of olive oil. We used fresh herbs from our garden, lemon thyme, oregano and chives. You can use any fresh herbs of choice like dill, parsley, basil, marjoram all work well here. In addition, feel free to exchange with 1 teaspoon dried herbs like an Italian blend works well.
Place one fillet of rainbow trout in the middle of each aluminum foil pieces with the skin side down.
Next place your zucchini, yellow squash slices and snap peas or quick cooking vegetables of choice.
Top with lemon slices, drizzle of olive oil, fresh herbs and salt and pepper to taste.
Wrap each packet leaving room around the fish and crimp the edges so it is sealed all around.
Cook your packets on the grill on medium - high for about 10 minutes or until your fish flakes easily with a fork.
Serve your packets to your guests right in the aluminum foil packet. Clean-up is a breeze