Double Cheeseburger Pizza Rounds

From Pillsbury Quick & Easy Bake-Off #39

1/2 lb lean ground beef or turkey
1 (1lb .3oz) can Pillsbury Grands Refrigerated Buttermilk Biscuits
1 egg yolk
1/4 tsp water
1 Tbsp sesame seeds
1 (14oz) jar pizza sauce
4oz (1C) crumbled feta cheese
2 Tbsp chopped ripe olives
Dash Worcestershire sauce
Dash hot pepper sauce
Dash salt
Dash pepper
4oz (1C) shredded pizza cheese blend or mozzarella cheese

Heat oven to 375. Spray large cookie sheet with nonstick cooking spray. Brown ground beef in large skillet over medium-high heat for 8-10 minutes or until thoroughly cooked, stirring frequently. Drain.
Meanwhile, separate dough into 8 biscuits. Place 2 1/2 inches apart on sprayed cookie sheet. With bottom of flat 2" diameter glass or with fingers, press out each biscuit to form 3 1/2" round with 1/4" rim around outside edge. In small bowl, combine egg yolk and water; beat well. Brush over tops and sides of biscuits. Sprinkle with sesame seeds.
Add all remaining ingredients except pizza cheese blend to ground beef; cook 1 minute, stirring constantly.
Spoon about 1/4 cup ground beef mixture into indentation in each biscuit. Sprinkle each with pizza cheese blend.
Bake at 375 for 12-17 minutes or until golden brown and cheese is bubbly. Carefully remove from cookie sheet.