How to Make It
Preheat broiler to high with oven rack in top position.
Place pitas on a baking sheet. Broil until lightly browned, about 1 minute. Remove baking sheet from oven; turn pitas over. Do not turn off oven.
Heat a medium nonstick skillet over medium-high. Add sausage, and cook, stirring to crumble, until no longer pink, 4 to 5 minutes.
Spread 2 tablespoons marinara over each pita. Top evenly with cheese, sausage, tomato, and olives. Broil until cheese melts and browns in spots, 1 to 2 minutes. Serve immediately.