HEAT oven to 450ºF.
SPREAD crust with tzatziki; top with next 4 ingredients.
BAKE directly on oven rack 8 to 10 min. or until cheese is softened and edge of crust is golden brown.
DRIZZLE with lemon juice; sprinkle with onions.
Food Facts: Feta is Greek for "piece" or "slice," and refers to an important step in the process of making this delicious cheese.
Variation: For a softer pizza crust, place pizza on baking sheet before baking as directed.
Food Facts: Made with yogurt, dill and cucumbers, tzatizki is a traditional Greek condiment that adds irresistible flavor to this easy-to-make pizza. Look for tzatziki in the refrigerated section of your grocery store.