My husband is not a fan of mushrooms and he loved this dish. Also I have a very picky two year old who also enjoyed this dish. I myself have never made stuffed mushrooms and these were with out a doubt the best I have ever tasted.
In a small bowl put in olive oil and take a brush and rub outside of mushrooms with oil and place in and oven safe dish. Then in a separate dish mix parmesan cheese, shredded cheese, peprika, diced roasted red peppers, Keilbasa, salt, pepper,and red pepper flakes. Then fill mushroom caps with mixture. Top with bread crumbs and cook for 15 mins in a 400 degree oven. Then remove top with bacon and return to oven and cook for another 5 mins. Be very careful not to over cook.