Cheesey Tater Tot Casserole

1 (2 lb) bag ore-ida frozen tater tots
2 (10 3/4 ounce) cans cream of mushroom soup
1 (8 ounce) sour cream
1 (16 ounce) package cheddar cheese, shredded
1 (8 ounce) package colby cheese, shredded
1 teaspoon black pepper
1 (6 ounce) container French's French fried onions

Directions:

1
Mix everything but the Colby cheese and french's onions in a large bowl (make sure tots are still frozen so they don't break apart).
2
Scoop mixture into one 9x13 pan.
3
Bake uncovered at 350 degrees for one hour.
4
Top with Colby cheese and then French's onions and bake for another 5-10 minutes until onions are golden brown.