1 pound lean ground beef.
2 cups of sweet red peppers (including sauce).
1 chopped onion.
1 can sliced mushrooms (drained).
1 cup of grated mature Cheddar cheese.
Pastry for a 9 inch double crust pie.
Place peppers, including liquid, into food processor; process until peppers are cut into very small pieces.
Brown meat and onions in a pan.
Add peppers, mushrooms, and cheese to pan.
Spoon into bottom crust.
Cover with top crust, and seal the edges.
Bake at 350°F until crust is golden-brown, and pie is heated through.