Pizza Roll Ups with Dipping Sauce

2 Tbsp butter, melted
1/4 tsp italian seasoning
1/4 tsp garlic powder
1 can refrigerated pizza crust
1 cup shredded mozzarella cheese
2 Tbsp chopped onions
1 pkg (9 oz) shaved oven roasted turkey breast
1 1/2 cups marinara sauce

Preheat oven to 400. Mix butter, italian seasoning, and garlic powder until well blended; set aside. Unroll dough onto ungreased baking sheet. Press into 15x10 inch rectangle; brush with half of the butter mixture. Sprinkle with cheese and onions; top evenly with turkey. Starting at one of the short ends, roll up dough to form log. Pinch seams and ends together to seal. Position log lengthwise, seam side down, in center of baking sheet. Brush with remaining butter mixture. Bake 15 minutes or until lightly browned. Let stand 5 minutes. Cut crosswise into 12 slices. Serve with marinara sauce.