Canadian Bacon Strata

softened butter for pan
6 English muffins, toasted and cut in half
1/2 pound Canadian bacon, halved
1 1/4 cups shredded sharp Cheddar
1/2 cup parmesan cheese
8 eggs
3 cups milk
1 1/2 tablespoons Dijon mustard
salt and pepper
1/4 teaspoon Tabasco

Butter a baking dish. Alternately arrange, cut side down, muffin halves and Canadian bacon. Sprinkle with cheeses. Whisk together eggs, milk, mustard, 1/2 teaspoon salt, pinch of pepper and hot sauce. Pour over muffins and bacon. Cover and refrigerate at least 2 hours and up to overnight. Preheat oven to 350. Place baking dish on a rimmed baking sheet. Bake until puffed and set in the center about an hour and a half. Tent with foil if strata starts browning too quickly. Let stand 10 minutes before cutting and serving.