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Strata in a casserole dish.
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Egg Strata with Apples & Caramelized Onions

This vegetarian egg strata with caramelized onions and apples is a perfect holiday worthy brunch or breakfast option that is also gluten free!
Course Breakfast
Cuisine American
Diet Gluten Free, Vegetarian
Prep Time 1 hour 10 minutes
Cook Time 1 hour 25 minutes
Total Time 2 hours 35 minutes
Servings 6 people
Calories 400kcal

Ingredients

  • Tbsp  extra virgin olive oil
  • 1/2  onion thinly sliced
  • 2 cloves garlic minced
  • 1 tbsp minced fresh sage
  • 1 tbsp minced fresh rosemary
  • 2 cups baby kale sliced
  • Pinch each of salt pepper and nutmeg
  • 1 red apple diced
  • large eggs
  • 1 3/4  cups 1% or 2% milk
  • tbsp  Dijon mustard
  • Pinch each of salt and pepper
  • 5 cups gluten free sourdough bread diced
  • 3/4  cup  swiss or gruyere cheese  grated and divided
  • 2 tbsp  chevre

Instructions

  • Lightly grease a 9x13 inch casserole or gratin dish.
  • Add the oil to a large nonstick skillet over medium high heat, and add in the onions and cook on a medium low heat until golden brown, about 30 minutes. Then stir in the garlic, sage, and rosemary. Cook until fragrant. Add in the kale and a pinch each of salt, pepper and nutmeg.
  • In another bowl, mix together the eggs, milk, mustard, apple, 1/4 cup of gruyere cheese and a pinch each of salt and pepper. Add in kale and onion mixture and combine.
  • Arrange the Promise gluten free sourdough bread into a casserole dish, and top with the milk and egg mixture. Finish with the remaining gruyere and chevre. Cover and refrigerate for 1 hour or up to overnight.
  • Preheat oven to 350 F.
  • Bake uncovered for 45-50 min or until golden brown.

Notes

I've made a lot of egg strata's in my day, and here's what I've learned.
  • Use day old bread if you can! It will soak up the egg better and not get soggy
  • Put the cheese into the casserole and on top!
  • Let the strata rest for 5-10 minutes before you cut and serve it.
I also like to cover and refrigerate for 1 hour or up to overnight. This is why this dish is sooooo amazing for entertaining - because all of the work can happen the day before! An hour before guests arrive, I preheat my oven and bake it off until golden brown and voila! Done.
While we love to use gruyere in this recipe for its super melty consistency and nutty flavour, some vegetarians may wish to avoid this option as gruyere has rennet which technically makes it non-vegetarian. Swiss cheese, on the other hand, is a great fully vegetarian friendly option and is just as delicious!

Nutrition

Calories: 400kcal | Carbohydrates: 25g | Protein: 22g | Fat: 23g | Saturated Fat: 10g | Cholesterol: 265mg | Sodium: 393mg | Potassium: 361mg | Fiber: 2g | Sugar: 9g | Vitamin A: 3084IU | Vitamin C: 29mg | Calcium: 504mg | Iron: 2mg