Vegetarian Breakfast Strata

view of sliced baked vegetarian breakfast strata in white rectangle casserole dish

This Vegetarian Breakfast Strata is the perfect overnight casserole. Serves a crowd, great for entertaining and the vegetables can be customized to your liking. Luscious egg-soaked baguette bites and cheese – you can’t pass this up!


  • 1 (14 ounce) day old baguette, cubed
  • ½ tablespoon olive oil, for cooking
  • 1 small onion, diced
  • 2 cloves garlic, minced
  • 1 red bell pepper, diced
  • 1 package baby bella mushrooms, sliced
  • 1 small bunch of kale, finely chopped, about  2” pieces (equal to about 4 cups), 
  • 12 large eggs
  • 3 cups milk 
  • 1 teaspoon salt 
  • ½ teaspoon black pepper
  • ½ cup shaved parmesan cheese
  • 1 cup sharp white cheddar cheese



  1. Grease a 9×13 casserole dish with butter and set aside.
  2. Slice day old baguette into 1” cubes and place in bottom of baking dish. If bread is not stale, just slice into 1” slices and toast in oven at 300ºF for 8 minutes.
  3. In a large skillet over medium heat, add oil, minced garlic and onions. Cook for about 3-4 minutes, stirring occasionally. Add in diced bell pepper, mushrooms and kale, cooking down for another 4-5 minutes, until kale is wilted. Remove from heat and set aside.
  4.  In a large bowl, whisk together eggs, milk, salt and pepper.
  5. Add the skillet veggie skillet mixture over top of the cubed bread, tossing to evenly combine. Sprinkle on ½ cup of the white cheddar cheese.
  6. Pour egg mixture over bread and veggies, add parmesan cheese and rest of white cheddar cheese. Making sure all bread pieces are fully coated in mixture. Cover and refrigerate for at least 4 hours (up to 12 hours max).
  7. Remove casserole from fridge and preheat oven to 375ºF. Re-position bread and make sure all pieces are coated still. Bake uncovered for 45-55 minutes, until edges are golden, strata has puffed up


Refer to post for more flavor variations and ideas.

Keywords: breakfast strata, vegetarian breakfast casserole, christmas breakfast ideas