Everything Bagel Casserole

2% milk, bagel, wheat, egg white, lowfat cream cheese (pasteurized milk and cream, whey protein concentrate, <2% of: salt, carob bean gum, guar gum, natamycin (a natural mold inhibitor), vitamin a palmitate, cheese culture), tomatoes, cheddar (milk, cultures, salt, enzymes, annatto (color)), onion, green onions, kosher salt, everything seasoning (sesame seeds, dried onion, dried garlic, salt, poppy seeds), black pepper. contains: egg, milk, sesame, gluten, and dairy