Fav Deep Dish Pizza Fillings, without cheese?

Hi Footnotes, I haven't tried the zucchini butter , thanks for the tip. I'm making pizza also this weekend. Good luck with your party.

We love to fry eggplant and make "Eggplant Parm" pizza, but you'd need cheese for that one. Cheeseless, I'd recommend tomato sauce and crumbled sausage. I'd mix that sausage with chopped, browned onions and garlic. Fabulous without the cheese!

Here are a few ideas - white clam pizza, just clams garlic, peperoncino & olive oil, maybe a little grated Parmesan . Sliced potatoes , thinly sliced and layered with some thyme, olive oil and garlic. grated zucchini , just grate , squeeze out the excess water, season a bit and you're good to go. grilled veggies (like eggplant) with a splash of balsamic and lemon. Good luck!

You could use pesto

A set-up idea. If you are going to have several pizzas anyway, consider presenting them as a pizza bar...
*dough, already rolled out, or participants can do
*basic sauces, say one each red and another color
*toppings, sauteed or roasted veg, cured meats, poached or smoked seafood
Pop in a hot oven for a few minutes, and everyone has a customized dinner.
Have a few garnishes out...good olive oil, hot sauce, fresh herbs to sprinkle, others to your taste.

These aren't deep dish recipes, but the toppings still might provide some inspiration: https://food52.com/recipes/16573-meyer-lemon-focaccia, https://food52.com/recipes/25728-za-atar-carrot-and-leek-flatbread-with-almonds-and-fennel-salad, and (minus the cheese) https://food52.com/blog/16355-why-salad-pizza-should-be-the-next-big-thing