Meat 'n' Cheese Stromboli

1 medium onion, sliced and separated into rings
1 medium green pepper, sliced into rings
1 Tbsp butter
2 loaves (16 oz each) frozen bread dough, thawed
1/2 lb thinly sliced hard salami
1/2 lb thinly sliced deli ham
1/2 lb sliced mozzarella cheese
1/2 lb sliced mild cheddar cheese
1/2 tsp Italian seasoning
1/4 tsp garlic powder
1/8 tsp pepper
1 egg, beaten
1 tsp poppy seeds

In a large skillet, saute onion and green pepper in butter until crisp-tender; set aside.

On two greased baking sheets, roll each loaf of dough into a 15"X12" rectangle.  Arrange the salami, ham and cheeses lengthwise over half of each rectangle to within 1/2" of edges.  Top with onion mixture; sprinkle with Italian seasoning, garlic powder and pepper.  Fold dough over filling; Pinch edges to seal well. 

Brush with egg and sprinkle with poppy seeds.  Bake at 400 degrees for 15-20 minutes or until golden brown.  Cool for 5 minutes before slicing.