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.
Feta is Greek for "piece" or "slice," and refers to an important step in the process of making this delicious cheese.
For a softer pizza crust, place pizza on baking sheet before baking as directed.
Made with yogurt, dill and cucumbers, tzatziki 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.