Open the jar of marinara sauce, add crushed tomatoes, granulated garlic, pepper, basil. Mix together until well mixed - set aside. Chop onions, mushrooms, garlic. Once chopped add to the sauce and combine. In 2 9 x9 metal pans add about 1/2 - 1 cup marinara sauce add the 6 frozen chicken tenders cover with sauce , 1/2 the cheese (shredded) parmigiano-reggiano and mozzaella then divide between the two pans. top with 1/2 the bread crumbs on each pan try to cover evenly. (repeat for other pan). In your new wave cook on hi 20 minutes or until you feel it is done. (I bake one at a time). If you like it a bit brown (baked cheese) bake for an additional 5 minutes on high.