Cut your zucchini slices about half an inch thick.
To remove moisture, generously salt both sides and allow to rest in a colander for 10-15 minutes.
Preheat oven to 400F.
After the zucchini has rested, wipe off salt and squeeze between paper towel to remove any excess moisture.
Place zucchini on baking sheet.
Spread a spoonful of pizza sauce on each slice, followed by some shredded cheese (I used cheddar), a slice or two of pepperoni, some tomato slices with seeds removed, and some slices of red onion.
Bake for 10-15 minutes until cheese is melted and the top of the zucchini pizzas start to brown.