Start by washing and slicing the zucchini into even half-moons. Peel and devein the shrimp if not already done, then pat everything dry so it roasts instead of steaming. Mince the garlic and grate your parmesan cheese fresh for the best flavor.
In a mixing bowl, toss the shrimp and zucchini with olive oil, garlic, Italian seasoning, salt, and pepper. I like to add red pepper flakes for a slight kick. Make sure everything is evenly coated so every bite is flavorful.
Spread the shrimp and zucchini in a single layer on your sheet pan. This ensures even cooking and gives a nice roasted texture. Sprinkle the parmesan over the top before baking.
Bake at 400°F (200°C) for 12–15 minutes until the shrimp are pink and opaque and the zucchini is tender. I always check a few minutes early to avoid overcooking.
Once out of the oven, drizzle fresh lemon juice over the shrimp and zucchini. It brightens the dish and complements the parmesan beautifully. Serve hot right from the pan for a rustic presentation.