Make-Ahead Veggie Breakfast Casserole

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Last week we had a little “going away” breakfast party for a couple of the guys at work who were leaving us. I work with a pretty big group of people, so it is always fun to do a work potluck where I you to eat a little bit of a whole bunch of different foods!

There were already quite a few people signed up to bring breakfast ‘sweets’ – bagels, muffins, doughnuts. So I was looking for something on the savory side that would be easy to transport. The only caveat to this was due to dietary restrictions, it would be much easier to have the dish be vegetarian. Enter the idea for an egg casserole, except I needed a recipe. My dad has made one growing up, but it always contained Polish sausage and would be a bit plain without the meat.

In a recipe search, I came across this recipe from Sally’s Baking Addiction that looked pretty customizable. Bonus in that it was make-ahead because let me be honest. I already had to bake this and be into work by 6:30 that morning. And I don’t function too well in the morning any earlier than that.

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I mostly used her recipe as a base, swapping and adding things where I thought it might be good. As mentioned above, I did not add any meat, thus I ended up adding some shredded hash browns to the cooked veggie mixture in an attempt to ‘heft’ the casserole up a touch. Other than no mushrooms, I largely followed her veggie list, adding only a jalapeño that happened to be in my fridge. I used normal sandwich bread for the bread in the recipe, although I’m sure any type of bakery loaf you may have would be awesome here as well. Just know that it can work with the bread you normally have in the house too 🙂

On the bake time, I will say to watch it closely. I also baked mine on the longer side, 53 minutes to be exact, as I was concerned about ensuring the middle was cooked (particularly as I had added the potatoes). The eggs themselves were not over baked, however the bottom of the casserole was more of a dark tan color. I might shave a few minutes off that next time and keep it closer to the 48-50min range. Keep in mind, if the casserole has a chance to cool off for a bit, it will seem to ‘set up’ more as well. I cannot speak to reheating as the casserole did not make it until lunch at work, but I have had success reheating egg bakes in the past. Enjoy!

(Printable Recipe)

Make-Ahead Veggie Breakfast Casserole
Adapted from Sally’s Baking Addiction

Ingredients:
1 Tbsp. olive oil
2 bell peppers of any color, diced
1 onion, chopped
1 jalapeno, seeds removed, chopped
2-3 garlic cloves, minced
1 (10 oz) pkg baby spinach
1/3 to 1/2 pkg frozen shredded hash browns
salt and freshly ground black pepper
4 slices of bread (any type desired), torn into bite-sized pieces
10 large eggs
1/2 cup milk
3/4 cup shredded cheddar cheese
Non-stick spray

Warm a large skillet over medium heat. Add olive oil. When warm, add the bell peppers, onions, and jalapeño and sauté for 4-5 mintues, or until crisp-tender. Add the garlic and cook until fragrant, about 1 minute. Add the potatoes and cook until warmed through (this should help get out any extra water). Add the spinach and cook until wilted. Season with salt and pepper to taste. Set the vegetables aside.

Grease a 9×13 inch baking pan with non-stick spray. Add the torn bread in a (mostly) single layer over the bottom of the pan.

In a large bowl, whisk the eggs and milk. Stir in 1/4 cup of cheddar cheese. Sprinkle with salt and pepper. Pour half of the egg mixture over the bread. Top with the vegetables and cover with the remaining egg mixture. Sprinkle the remaining cheese over the top of the casserole.

Spray the bottom of a piece of aluminum foil with non-stick spray. Cover the casserole and refrigerate for at least 2 hours or up to overnight. Remove and allow to come to room temperature prior to baking.

Preheat the oven to 375 degrees. Bake the casserole, uncovered, until the top is golden, the edges are crispy, and the middle appears to be set or about 40-50 minutes. Allow to cool as desired (will ‘set up’ slightly more as it cools).

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