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Cheesy Sausage and Egg Casserole with Kale

The most delicious prep-ahead breakfast casserole made with sausage, egg, and kale. Don't forget to check out our step by step photos and tips above!
Course Breakfast
Cuisine American
Prep Time 10 minutes
Cook Time 55 minutes
Total Time 1 hour 5 minutes
Servings 8 - 10 servings
Calories 493kcal


  • 1 lb. breakfast sausage
  • 1 cup chopped yellow onion
  • 3 cups chopped fresh kale
  • 12 ounces English muffins cubed and toasted
  • 2 cups shredded cheese such as cheddar or Gruyere, divided
  • 10 eggs
  • 2 cups milk
  • 1 tsp. kosher salt
  • ½ tsp. black pepper
  • Garnish: chopped fresh parsley


  • In a large skillet, cook sausage over medium heat until browned and crumbly, about 8 minutes.
  • Add onions; cook, stirring occasionally, until softened, about 5 minutes.
  • Stir in kale; cook, stirring occasionally, 2 minutes. Remove from heat.
  • Add sausage mixture to a 13x9-inch casserole dish.
  • Stir in toasted English muffin cubes and 1 cup cheese.
  • In a medium bowl, beat eggs until smooth. Whisk in milk until combined. Stir in salt and pepper.
  • Pour egg mixture over sausage mixture in casserole dish.
  • Top with remaining 1 cup cheese. Cover with aluminum foil.
  • Refrigerate two hours or overnight.
  • Preheat oven to 350°F.
  • Bake 20 minutes; uncover, and bake until top is toasted, 15 to 20 minutes more. Garnish with parsley, if desired.


  • Serving this to adults for brunch? Throw in a pinch of crushed red pepper flakes for a kick!
  • To lighten up this casserole, use turkey sausage instead of pork.
  • If you’re not a fan of kale, use tender baby spinach.
  • To toast the English muffins, bake at 400°F for 10 minutes.
  • Use any bread you like, such as sourdough, baguettes, or ciabatta.
  • You can use any cheese you like this recipe; I used a mixture of sharp cheddar and Gruyere.
  • Serve with your favorite fruit salad and biscuits.


Calories: 493kcal | Carbohydrates: 28g | Protein: 28g | Fat: 30g | Saturated Fat: 12g | Cholesterol: 274mg | Sodium: 1087mg | Potassium: 527mg | Fiber: 2g | Sugar: 4g | Vitamin A: 3138IU | Vitamin C: 32mg | Calcium: 312mg | Iron: 3mg