Sausage and Veggie Grill Packets

Name: Sausage and Veggie Grill Packets
Ingredients: 4 small heads garlic; 2 Tbsp Italian seasoning; salt and fresh cracked black pepper (to taste); 1/4 cup olive oil (plus more for drizzling); 4 cooked sausage (any variety, sliced on the bias (I used spinach and feta chicken sausage)); 2 ears sweet corn (cut in 2 inch wheels); 2 bell peppers (assorted colors, cut into chunks); 1/2 red onion (peeled and cut in 1 inch chunks); 4 large white mushrooms (quartered); 4 Brussels sprouts (trimmed and halved); 1 small zucchini (sliced); 1 small yellow summer squash (sliced); 2 spears asparagus (cut in 2 inch pieces); 1 watermelon radish (sliced in half moons); 8 cherry tomatoes (uncut)