Focaccia-based pizza

So I was making my delicious focaccia again and decided to freeze one of them, to see how it would turn out. I took it out of the freezer and waited about 2 hours and then set about making a dynamite pizza. With an easy tasty sauce.
Prepare Sauce:
-In a food processor, mix 3-4tbsp of tomato puree, 1/2 small can of whole peeled tomatoes (with some of the juice), 2 peeled cloves of garlic, a little bit of onion, 1 tsp each of white sugar, dried basil, salt, and oregano.
Prepare Pizza:
-Spread the newly made sauce on the focaccia base
-Put on top your favorite toppings: I think its sinful to have pizza without onion, broccoli, or olives. I also put on zucchini, fresh tomato, and mushroom
-Cover with some freshly shredded cheeses: mozarella and light cheddar work well, I also added a bit of parmesanCook Pizza:
-Preheat oven to around 400F/200C
-Place pizza on a thin pan and put in the oven for about 15 minutes, or until crust gets crispy (depends on thickness of the crust)
-Bon apetit