Ritz Apple Crisp

28 Ritz Crackers, finely crushed (1 cup)
1/3 cup firmly packed light brown sugar
1 teaspoon ground cinnamon
1/4 cup (1/2 stick) butter or margarine, softened
2 pounds baking apples (about 6 medium), peeled, thinly sliced
2 teaspoons lemon juice
Vanilla yogurt or whipped topping (optional)

Mix crumbs, sugar and cinnamon. Cut in margarine until mixture holds together. Arrange apple slices in 9-inch pie plate. Sprinkle with lemon juice. Pat crumb mixture gently over apples. Bake at 350 degrees F for 40 minutes or until apples are tender and top is browned.

Serve warm topped with yogurt or whipped topping.