Cheesy Grilled Zucchini Stacks make a great appetizer or side dish. Sick of boring veggie side dishes? You won't even realize you're eating something healthy when you dig into these deliciously cheesy stacks of flavor. Zucchini slices are grilled then stacked, layered with marinara sauce and a cheesy mixture of cream cheese and mozzarella. Eat one, or all four!