Pizza in a pepper? It's just crazy enough to work. In fact, this meal is crazy enough to be crazy-delicious, with savory sausage, meaty mushroom, and gooey, stretchy mozzarella. Add in a bit of marinara sauce, and you've managed to pizza a pepper. Crazy-delicious, crazy-easy… maybe this isn't so crazy after all.
Stem green bell peppers, halve lengthwise, and remove seeds and ribs.
Cut mushrooms into ¼" slices.
Slice pepperoncini into ¼" rounds.
Remove Italian sausage from casing.
Start the Peppers
Place green bell pepper halves on prepared baking sheet and toss with 1 tsp. olive oil and a pinch of pepper. Massage oil into peppers.
Arrange pepper halves cut side down. Roast in hot oven until tender but still crisp, 13-15 minutes.
Remove from oven. Peppers will finish cooking in a later step.
While peppers roast, make filling.
Make the Filling
Heat 1 tsp. olive oil in a medium non-stick pan over medium heat. Add Italian sausage to hot pan. Stir occasionally, breaking up with a spoon, until browned, 3-4 minutes.
Transfer sausage to a plate. Wipe pan clean and return to medium heat.
Add 1 tsp. olive oil and mushrooms to hot pan. Stir occasionally until lightly brown, 3-4 minutes.
Remove from burner. Stir in Italian sausage, marinara, and a pinch of salt.
Finish the Peppers
Carefully, flip pepper halves cut side up. Distribute filling evenly among pepper halves and top with cheese.
Roast until cheese is lightly browned and bubbly and peppers are fully tender, 9-11 minutes.
Finish the Dish
Plate dish as pictured on front of card, garnishing with pepperoncini (to taste). Bon appétit!