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4.8 from 69 votes

Slow Cooker Breakfast Casserole

This easy slow cooker breakfast casserole is made with frozen hash browns, vibrant bell peppers, ham, eggs and cheddar cheese! It’s perfect for Christmas morning or holiday brunch and is a total crowd pleaser!

Prep Time
15 mins
Cook Time
7 hrs
Total Time
7 hrs 15 mins
Servings: 12 slices
Calories: 241 kcal
Course: Breakfast
Cuisine: American

Ingredients

  • 1 Tbsp. olive oil
  • 1 red bell pepper, diced
  • 1 orange bell pepper, diced
  • 1 small white onion, chopped
  • 1/2 tsp. garlic powder
  • 1/2 tsp. salt
  • 1/2 tsp. pepper
  • 1, oz. can diced green chilies
  • 12 large eggs
  • 1 cup whole milk
  • 1 Tbsp. Dijon mustard
  • 30 oz. package shredded hash browns, frozen
  • 1 lb. breakfast sausage or ham, diced or crumbled this is a great recipe to use up leftover holiday ham!
  • 1 1/2 cups Cheddar cheese, shredded
Optional garnish ideas:
  • diced green onions optional
  • chives optional
  • hot sauce optional

Instructions

    Cup of Yum
  1. Heat the olive oil in a medium skillet over medium-high heat. Add in onions and bell peppers and saute until vibrant, stirring occasionally, ~5 minutes. Add in garlic powder, salt, and pepper. Stir. Right before the veggies are cooked, stir in the green chiles then remove from heat.
  2. In a large mixing bowl, whisk eggs, milk and mustard together. Set aside.
  3. Grease the bottom of a slow cooker with non-stick cooking spray.
  4. Place half of all of the ingredients in the first layer: half of the bag of frozen hash browns, sausage/ham, onion/bell pepper mixture and then cheese.
  5. Repeat layers again with remaining ingredients, ending with the cheese. 
  6. Pour egg mixture over all of the ingredients in the slow cooker. 
  7. Cook on high for 3-4 hours or on low for 7-9 hours. Garnish with diced green onions, chives, hot sauce etc. before serving.

Notes

  • Store leftovers in an airtight container in the fridge for 3-4 days. Reheat the casserole in the microwave or in the oven until warmed through. (400°F for 15-20 minutes should do the trick!)
  • To freeze, let cool completely then cover well with plastic wrap and then with aluminum foil and freeze for 2-3 months. 
  • Recipe inspired by Spend with Pennies. 

Nutrition Information

Serving 1slice Calories 241kcal (12%)

Nutrition Facts

Serving: 12slices

Amount Per Serving

Calories 241

% Daily Value*

Serving 1slice
Calories 241kcal 12%

* Percent Daily Values are based on a 2,000 calorie diet.