Step 1

Preheat oven to 350°. In a large skillet, cook beef over medium heat 6-8 minutes or until no longer pink, breaking into crumbles; drain.

Step 2

In a large bowl, combine beans, taco seasoning and salsa. Stir in beef, cheddar cheese and 1/4 cup olives.

Step 3

On a lightly floured surface, unroll 1 pizza crust; cut into 25 circles with a 2-in. biscuit or round cookie cutter. Repeat with remaining pizza dough. Reroll scraps to form 50 balls.

Step 4

Place 1 heaping tablespoon beef mixture on the center of half of the circles. Top with remaining circles; pinch edges to seal. Place on parchment-lined baking sheets; gently shape into ghosts. Brush with egg whites; press 2 dough balls into sides to form arms. Sprinkle with Monterey Jack cheese; top each with sliced olives for the eyes and mouths.

Step 5

Bake 15-20 minutes or until golden brown and cheese is melted.