• 1 pound Spicy Breakfast Sausage: The heart of our casserole, spicy breakfast sausage provides the savory base and essential heat that defines this dish.

  • Bulk Spicy Sausage (Recommended): Bulk sausage, sold in tubes or packages, is ideal for this recipe as it crumbles easily and cooks evenly. Look for “hot” or “spicy” breakfast sausage varieties.
  • Sausage Links (Casing Removed): If you can only find sausage links, you can use them! Simply remove the casings and crumble the sausage meat before cooking.
  • Mild Sausage (Adjust Spice Level): If you prefer a milder casserole, you can use mild breakfast sausage and increase the amount of red pepper flakes or hot sauce to control the spice level. You can also add a pinch of cayenne pepper to mild sausage to give it a kick.
  • Italian Sausage (Spicy or Sweet): For a different flavor profile, spicy or sweet Italian sausage (casing removed) can be used as a substitute. Italian sausage will provide a different spice blend and flavor compared to breakfast sausage.
  • Plant-Based Sausage (Vegan/Vegetarian Option): For a vegetarian or vegan Spicy Sausage Biscuit Breakfast Casserole, use plant-based breakfast sausage crumbles or links. Several brands offer excellent vegan spicy sausage options that mimic the texture and flavor of pork sausage.

• 1 medium Yellow Onion, chopped: Yellow onion provides a foundational aromatic base for the filling, adding savory depth and sweetness as it cooks.

  • White Onion (Substitute): White onion can be substituted for yellow onion. It has a slightly sharper flavor.
  • Sweet Onion (For Milder Flavor): If you prefer a milder onion flavor, you can use sweet onions like Vidalia or Walla Walla onions.

• 1 Green Bell Pepper, chopped: Green bell pepper adds a slightly sweet and vegetal note, along with a bit of crispness and color to the filling.

  • Red, Yellow, or Orange Bell Pepper (Sweeter Options): For a sweeter flavor and more vibrant color, you can substitute with red, yellow, or orange bell peppers.
  • Bell Pepper Alternatives: If you don’t have bell peppers, you can use other vegetables like chopped poblano peppers (for mild heat), or skip the bell pepper altogether.

• 4 ounces Cream Cheese, cubed: Cream cheese adds richness, creaminess, and a slight tang to the filling, creating a luscious texture and binding the ingredients together.

  • Full-Fat Cream Cheese (Recommended for Richness): Full-fat cream cheese provides the best flavor and creamy texture.
  • Reduced-Fat Cream Cheese (Lighter Option): You can use reduced-fat cream cheese to reduce fat content, but the texture may be slightly less rich.
  • Neufchatel Cheese (Similar to Reduced-Fat): Neufchatel cheese is similar to reduced-fat cream cheese and can be used as a substitute.
  • Vegan Cream Cheese (Vegan/Dairy-Free Option): For a vegan or dairy-free Spicy Sausage Biscuit Breakfast Casserole, use vegan cream cheese. Many brands offer excellent vegan cream cheese alternatives that mimic the taste and texture of dairy cream cheese.

• 1 cup Shredded Cheddar Cheese: Cheddar cheese provides a classic cheesy flavor that complements the sausage and other ingredients beautifully.

  • Sharp Cheddar (For Bold Flavor): Sharp cheddar cheese offers a more pronounced and tangy cheddar flavor.
  • Mild or Medium Cheddar (Milder Options): Mild or medium cheddar cheese will provide a more subtle cheesy flavor.
  • Monterey Jack or Colby Jack (Milder Melting Cheeses): Monterey Jack or Colby Jack cheese are milder melting cheeses that can be used as substitutes for a different flavor profile.
  • Pepper Jack Cheese (Extra Spice): For an extra spicy kick, use Pepper Jack cheese.
  • Vegan Cheddar Shreds (Vegan/Dairy-Free Option): For a vegan or dairy-free casserole, use vegan cheddar cheese shreds. Many brands offer vegan cheddar shreds that melt well.

• ½ cup Milk (dairy or non-dairy): Milk adds moisture to the filling, helping to create a creamy consistency and melting the cream cheese smoothly.

  • Whole Milk or 2% Milk (Richer Texture): Whole milk or 2% milk will create a richer and creamier filling.
  • Skim Milk (Lighter Option): Skim milk can be used for a lighter option.
  • Non-Dairy Milk (Almond, Soy, Oat, etc.): Non-dairy milk alternatives like almond milk, soy milk, or oat milk work well for a vegan or dairy-free casserole. Oat milk tends to provide a particularly creamy texture.

• 2 large Eggs, lightly beaten: Eggs bind the filling ingredients together, adding richness and structure to the casserole as it bakes.

  • Flax Eggs (Vegan Substitute): For a vegan Spicy Sausage Biscuit Breakfast Casserole, use flax eggs as a substitute. To make a flax egg, combine 2 tablespoons of ground flaxseed meal with 6 tablespoons of warm water and let it sit for 5 minutes to thicken.

• 1 teaspoon Dried Oregano: Oregano adds a slightly pungent, herbaceous note that complements the sausage and other savory flavors.

  • Italian Seasoning (Substitute Blend): Italian seasoning, which often contains oregano, basil, and thyme, can be used as a substitute for dried oregano for a slightly different herbaceous blend.

• ½ teaspoon Red Pepper Flakes (adjust to taste for spice): Red pepper flakes provide an additional layer of heat and spice to enhance the “spicy” aspect of the casserole. Adjust the amount to your spice preference.

  • Cayenne Pepper (More Intense Heat): For more intense heat, you can substitute cayenne pepper for red pepper flakes, using a smaller amount as cayenne pepper is much spicier.
  • Omit for Milder Casserole: For a milder casserole, you can omit the red pepper flakes entirely.

• ½ teaspoon Salt (or to taste): Salt is essential for seasoning the filling and enhancing all the other flavors. Adjust the amount of salt to your preference.
• ¼ teaspoon Black Pepper, freshly ground: Freshly ground black pepper adds a pungent, aromatic spice and enhances the overall flavor profile.

For the Fluffy Biscuit Topping:

• 1 (12-ounce) can Refrigerated Biscuits (such as Pillsbury Grands!): Refrigerated biscuits provide a convenient and fluffy topping for the casserole, adding a classic breakfast element and delightful texture.

  • Grands! Biscuits (Larger and Fluffier): Pillsbury Grands! biscuits or similar large, fluffy refrigerated biscuits are recommended for a substantial and satisfying topping.
  • Smaller Biscuits (Alternative): You can use smaller refrigerated biscuits if you prefer a less dense topping or want to use multiple smaller biscuits per serving.
  • Homemade Biscuits (From Scratch Option): For a from-scratch option, you can use your favorite homemade biscuit recipe. Ensure the biscuits are fluffy and bake well on top of the casserole.
  • Vegan Refrigerated Biscuits (Vegan/Dairy-Free Option): Several brands offer vegan refrigerated biscuits. Look for brands specifically labeled as vegan or dairy-free.

• 2 tablespoons Melted Butter (dairy or vegan), for brushing: Melted butter brushed over the biscuits before baking adds richness, flavor, and helps them brown beautifully.

  • Dairy Butter (Classic Richness): Dairy butter provides a classic buttery flavor and richness.
  • Vegan Butter (Vegan Option): Vegan butter works perfectly well for a vegan or dairy-free casserole and provides a similar richness and flavor.

• Optional – Everything Bagel Seasoning or Sesame Seeds (for topping): Everything bagel seasoning or sesame seeds, sprinkled over the biscuits before baking, add extra flavor, texture, and visual appeal to the topping.