Preheat Oven to 375°.
Choose the best mushrooms from the batch, enough to fill your baking dish.
Wipe each mushroom with a damp paper towel or cloth.
Remove the stems from each mushroom.
Chop the stems into fine bits and set aside.
Line your baking dish with mushroom caps, hole side up.
Melt 1 Tablespoon butter in frying pan on medium high heat.
Add chopped mushroom stems. Sauté until soft, about 3 to 4 minutes. Push aside in the pan.
2 Tablespoons butter to empty side of pan.
When butter is melted, add classic bread crumbs, Panko bread crumbs, and herbs. Blend.
In the pan, combine chopped mushroom stems with bread crumb mixture.
With a spoon, pack stuffing into each mushroom cap. Top with the remaining mixture and bacon bits.
Bake for about 35 minutes or until mushrooms are browned.