Manicotti Melanzane

INGREDIENTS:

8 Manicotti, Cooked And
-Drained
1 lb Ground Beef
3/4 c Onion, Finely Chopped
2 tb Olive Oil
1 c Seasoned Bread Crumbs
2 tb Parmesan Cheese, Grated
1 10 Oz Pkg Frozen Chopped
-Spinach, Thawed
3 Eggs, Slightly Beaten
1 ts Salt
1/4 ts Pepper