Shred 3 oz. of mozzarella over each of your matzo.
With the oven rack just below the broiler, broil on high until the cheese melts, ~5 minutes. Keep your eyes on it so the matzah doesn't burn.
Remove from oven, top with fresh basil, and let cool slightly before eating!
Notes
If you're trying to avoid the soggy matzah (I actually like it) roast it on a wire cooling rack instead of on a baking sheet. The moisture won't be trapped under the matzah, keeping it from getting soggy.Pizza sauce works better than marinara because it is thicker. The reduced water content prevents a soggy, watery matzo pizza.