Portabella Breakfast Casserole

Total Time
1hr 15mins
Prep 15 mins
Cook 1 hr

This is a healthy casserole that is great for breakfast! This can be made the evening before and cooked the next morning. Adapted from Women's Health magazine.

Ingredients Nutrition


  1. Spray a 10" frying pan and place over medium heat. Add mushrooms, garlic, onion, and rosemary. Cook until tender but not completely done.
  2. Spray a 1 qt., 6 1/2" round casserole dish. Place half of the bread evenly in dish. Layer in half of the cheese, and then half of the vegetable mixture. Repeat.
  3. In a large bowl, mix egg substitute, milk, salt and pepper. Pour over bread, cheese, and veggies and cover casserole with plastic wrap. Refrigerate for at least 2 hours or up to overnight.
  4. Remove plastic wrap and bake the casserole at 350*F. for 45 to 55 minutes or until set in the center. Let stand for 5 minutes. Serve hot.


Most Helpful

This is a great casserole. Even though I cleaned the mushrooms they turned the casserole an unattractive color. Next time I'll sprinkle some cheese on the top.

Cara #2 November 04, 2007

I made this exactly as directed, except for omitting the salt. I'm not sure if the baking dish I used was 1 quart but it turned out all right. The casserole is delicious. Rosemary turned out to be just the right accent for the mushrooms.

echo echo October 03, 2006

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