The neighbor kids loved these so much they forgot they were eating veggies. Only 4 ingredients for a cheesy, bubbly comfort snack.

To keep it truly 4 ingredients, any tweaks should mostly be about swapping, not adding. For a different flavor, trade the pepperoni for cooked, crumbled breakfast sausage or finely chopped ham, keeping the same amount. You can also swap the mozzarella for another good melting cheese like provolone or Monterey Jack—just know mozzarella gives you the most classic, stretchy, kid-friendly vibe. If your kids (or you) like a little kick, choose a spicy pepperoni or use a sharp cheese for extra flavor without adding more ingredients. For a slightly firmer texture, slice the zucchini even thicker and bake them a minute or two longer in the first roast to dry them out more before adding cheese. These are best fresh, but you can meal prep by slicing the zucchini and shredding cheese the night before; store them separately in the fridge so you can assemble and bake in under 15 minutes on a busy day.