The Best Everything Bagel Casserole Recipe | Kara Lydon | Kara Lydon

Ingredients

• 3 day-old everything bagels, chopped into bite-sized pieces*
• 6 slices cooked bacon, chopped
• 2 tablespoons butter
• 1/2 large or 1 small onion, thinly sliced (about 2 cups)
• 6 ounces or 4 cups baby spinach (fresh or frozen!)
• Salt and pepper, to taste
• 2 cups cherry tomatoes, halved OR 15-ounce can diced tomatoes, drained
• 1 tablespoon Everything But The Bagel (EBTB) Seasoning*
• 1 1/2 cups grated Gruyere cheese
• 1 1/2 cups grated sharp cheddar
• 8 large eggs
• 2 cups milk
• 1 tablespoon dijon mustard
• 6 ounces cream cheese, cut into bite-sized pieces
• Optional: sliced scallions, for garnish