Instructions
Step 1
Preheat oven to 350° F (180° C).
Step 2
Remove stems from mushrooms. Chop stems and set aside. Arrange caps in an oiled baking dish.
Step 3
In a frying pan, stir together butter, chopped stems, onion, salt and pepper. Cook until onions are clear and soft.
Step 4
Stir in lentils, cheese, and bread crumbs. Remove from heat.
Step 5
Stuff caps with the lentil mixture. Bake caps for 10-15 minutes, or broil them for about 5 minutes. Serve hot.