Super Easy Stuffed Shells

1 pkg frozen stuffed shells
2-3 c. spaghetti sauce
1/2 c. alfredo sauce
1/4 c. pesto sauce

Preheat oven to 400. Using a 9x9 glass dish, coated with cooking oil spray, spread a cup of spaghetti sauce. Lay shells cheese side up in sauce. Top shells with the rest of the spaghetti sauce. Place dollup of alfredo sauce on top of each shell, then top each with a dime sized amount of pesto sauce. Cover with foil and back for 40 minutes.