1 loaf (1 pound) sourdough bread, cut into 1/2-inch cubes
2 small leeks (white portion only), chopped
1 medium sweet red pepper, chopped
1-1/2 cups shredded Swiss cheese, divided
1-1/2 cups shredded cheddar cheese, divided
8 large eggs
2 cups whole milk
1/2 cup beer
2 garlic cloves, minced
1/4 teaspoon salt
1/4 teaspoon pepper
In a 13x9-in. baking dish coated with cooking spray, layer half of the bread cubes, half of the leeks and half of the red pepper, 3/4 cup Swiss cheese and 3/4 cup cheddar cheese. Repeat layers once.
In a bowl, whisk the eggs, milk, beer, garlic, salt and pepper. Pour over cheese. Cover with plastic wrap. Weigh strata down with a slightly smaller baking dish. Refrigerate for at least 2 hours or overnight.
Remove strata from the refrigerator 30 minutes before baking. Bake, uncovered, at 350° for 40-45 minutes or until a knife inserted in the center comes out clean. Let stand for 5-10 minutes before cutting.