Cheesy Potato Breakfast Casserole With Cheddar & Sun-dried Tomatoes

I recommend this

I don't recommend this

Details

11 Ingredients

• 1 Tbsp unsalted butter
• 1 small onion, diced
• 2/3 cup sun-dried tomatoes, preferably oil-packed, sliced into thin strips
• 6 cloves garlic, minced
• 9 large eggs
• 3 Tbsps hot mustard
• 1 cup whole milk
• 1 1/2 tsps salt
• 1/4 tsp freshly cracked black pepper
• 2 cups shredded Cheddar cheese
• 6 cups (or 1 lb) shredded frozen potatoes