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Horizontal picture of French toast casserole in a white casserole dish.
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5 from 9 votes

Overnight Mixed Berry French Toast Casserole

This delicious make-ahead breakfast casserole is always a crowd pleaser and take minutes to prepare.
Prep Time10 minutes
Total Time55 minutes
Course: Breakfast, brunch, main dish, vegetarian
Cuisine: American
Servings: 8 servings
Calories: 195kcal
Author: Lauren Kelly

Ingredients

  • 1 loaf stale bread
  • 5 whole cage-free eggs
  • 2 cage-free egg whites
  • 1 cup nonfat plain Greek yogurt
  • 1 cup almond milk
  • 3 ⁄4 cup 100 percent pure maple syrup
  • 1 16 ounce bag of frozen organic mixed berries
  • 2 tablespoons cold butter diced
  • ¼ cup unrefined brown sugar packed
  • 1 teaspoon ground cinnamon
  • 1 ⁄4 cup all-purpose flour

Instructions

  • Take berries out of the freezer and defrost for at least 30 minutes.
  • Spray a 9" × 13" casserole dish with organic nonstick cooking spray.
  • Tear bread into pieces and spread them throughout the casserole dish in an even layer.
  • In a large bowl, mix eggs, egg whites, Greek yogurt, milk, and maple syrup. Mix very well until smooth and thoroughly combined. Pour egg mixture completely over bread.
  • In a small bowl, mix butter, brown sugar, cinnamon, flour, and pecans, if using. Mix until all ingredients are combined, even if still lumpy.
  • Add defrosted berries on top of bread mixture.
  • Sprinkle the butter mixture on top of the bread. Cover and refrigerate overnight. If cooking the same day, make sure to refrigerate at least 30 minutes before baking.
  • 6. In the morning, preheat the oven to 350°F. Bake for 45 minutes until golden brown and the middle of the dish is set. Serve immediately with maple syrup, if desired.

Notes

If you are making this the night before, make sure you cover it toughly with aluminum foil to prevent it from drying out.
You can also use the same amount of fresh berries in this casserole.
Make sure the butter is cold, it yields a crisper, less soggy casserole.

Nutrition

Calories: 195kcal | Carbohydrates: 17g | Protein: 8g | Fat: 6g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 111mg | Sodium: 147mg | Potassium: 136mg | Fiber: 2g | Sugar: 13g | Vitamin A: 265IU | Vitamin C: 2mg | Calcium: 100mg | Iron: 1mg