Preheat oven to 350°. In a large skillet, heat oil over medium heat. Add onion; cook and stir 2-3 minutes or until tender. Add Canadian bacon; cook 1-2 minutes or until lightly browned, stirring occasionally. Remove from heat.
Line bottom of a greased 11x7-in. baking dish with Tater Tots; top with Canadian bacon mixture. In a large bowl, whisk eggs, sour cream, cream and seasonings until blended. Stir in cheese; pour over top. Bake, uncovered, 35-40 minutes or until golden brown. Yield: 6 servings. Bake 35 min.