Mix cheeses, eggs, salt and pepper.
In a 10x14 pan, layer:
1/3 of the uncooked lasagna
1 jar of Prego
1/2 of the cheese mixture
1/3 of the uncooked lasagna
2nd jar of Prego
Rest of cheese mixture
Rest of lasagna
3rd jar of Prego
Cover with plastic wrap and refrigerate overnight. Bake at 350 degrees for 1 1/2 hours. Makes 16 servings.