INGREDIENTS
1 tbsp
olive oil, plus more for the baking dish
8 oz
sliced white or brown mushrooms
2 cups
shredded carrots
5 oz
baby spinach (about 5 packed cups)
2 cups
frozen diced potatoes (do not thaw)
1 cup
roasted red pepper strips
2 cups
shredded sharp cheddar cheese
12
large eggs
2 cups
half-and-half
2 tsp
kosher salt
1/4 tsp
freshly ground black pepper