Banana and Chocolate Chip Baked French Toast with Oatmeal Crumble

Ingredients (11)

• 2 loaves sliced cinnamon swirl bread , about 24 slices
• 2 ripe bananas , sliced
• 1 1/2 cups semi-sweet chocolate chips
• 8 eggs
• 3 cups whole milk
• 1/4 cup butter , melted and cooled plus 1 tablespoon for greasing pan
• 1 tablespoon vanilla
• for crumble:
• 1/2 cup oatmeal
• 1/2 cup butter , at room temperature
• 1/2 cup brown sugar