Preheat oven to 450°. Coat large rimmed baking sheet with 2 tbsp. oil; roll, press, and stretch dough to fit sheet. Brush with remaining 1 tbsp. oil. In bowl, whisk ricotta and garlic powder; season and spread over dough. Top with next 3 ingredients. Bake until dough is browned, 15 to 20 minutes. Garnish with oregano.
A Simple Twist
Get creative with your combos on the pizza above. Try spiralized beets with goat cheese, carrots with crème fraîche, or celery root with Parmesan and bacon.