One-Pot Breakfast Casserole Muffins

Featured in: Morning Wham

These one-pot breakfast casserole muffins combine eggs, cheese, and a medley of fresh vegetables in a convenient, portable form. Whisked with milk and seasoned with smoked paprika, they bake quickly in muffin tins for an easy, budget-friendly start to your day. Optional bacon or sausage add a savory protein touch, while vegetarian variations simply use extra veggies. Perfect served warm or cold, these muffins store well in the fridge or freezer, making them ideal for meal prep. Easy, flavorful, and versatile for any morning.

Updated on Wed, 19 Nov 2025 11:26:00 GMT
Golden-brown One-Pot Breakfast Casserole Muffins filled with savory cheese, vegetables, and cooked bacon crumbles. Save
Golden-brown One-Pot Breakfast Casserole Muffins filled with savory cheese, vegetables, and cooked bacon crumbles. | ticktaste.com

Savory, portable breakfast muffins packed with eggs, cheese, and veggies are perfect for meal prep. They're budget-friendly and delicious hot or cold.

I first started making these breakfast casserole muffins to simplify weekday breakfasts for my family, and they quickly became a go-to because everyone enjoys customizing theirs.

Ingredients

  • Base: 8 large eggs, 1/3 cup whole milk (or dairy-free alternative)
  • Vegetables: 1 cup baby spinach, chopped, 1/2 cup red bell pepper, diced, 1/2 cup onion, finely chopped
  • Protein (optional): 3/4 cup cooked bacon or breakfast sausage, crumbled (omit for vegetarian)
  • Cheese: 1 cup shredded cheddar cheese (or Monterey Jack)
  • Seasonings: 1/2 teaspoon salt, 1/4 teaspoon black pepper, 1/4 teaspoon smoked paprika
  • Oils: 1 tablespoon olive oil or nonstick spray (for greasing muffin tin)

Instructions

Grease and prep:
Preheat oven to 350°F (175°C). Grease a 12-cup muffin tin with olive oil or nonstick spray.
Mix base:
In a large bowl, whisk together eggs and milk until fully combined.
Add ingredients:
Stir in spinach, bell pepper, onion, cooked bacon or sausage (if using), cheese, salt, black pepper, and smoked paprika.
Portion into tin:
Divide the mixture evenly among the 12 muffin cups, filling each about 3/4 full.
Bake:
Bake for 22–25 minutes, or until muffins are set and lightly golden.
Cool and serve:
Cool in the tin for 5 minutes, then run a knife around the edges and remove muffins. Serve warm or allow to cool completely for storage.
Warm, cheesy One-Pot Breakfast Casserole Muffins fresh from the oven, ready for a delicious breakfast. Save
Warm, cheesy One-Pot Breakfast Casserole Muffins fresh from the oven, ready for a delicious breakfast. | ticktaste.com

My kids love helping mix the ingredients, and these muffins are often the first thing gone at a family brunch.

Required Tools

You will need a 12-cup muffin tin, mixing bowl, whisk, knife, cutting board, and oven.

Allergen Information

Contains eggs and dairy. To make dairy-free, use plant-based options. If using bacon or sausage, may contain pork.

Nutritional Information

Each muffin (with bacon and cheddar) provides about 130 calories, 9 g fat, 2 g carbohydrates, and 9 g protein.

A close-up shot of delicious One-Pot Breakfast Casserole Muffins showing the fluffy eggs and colorful veggies. Save
A close-up shot of delicious One-Pot Breakfast Casserole Muffins showing the fluffy eggs and colorful veggies. | ticktaste.com

Enjoy these breakfast casserole muffins straight out of the oven or stash them for grab-and-go mornings!

Recipe Questions

Can I make these muffins vegetarian?

Yes, simply omit the bacon or sausage and add extra vegetables like mushrooms or zucchini to maintain flavor and texture.

What is the best way to store these muffins?

Refrigerate for up to four days or freeze for up to two months. Reheat in the microwave or oven before serving.

Can I use dairy-free alternatives?

Absolutely, substitute whole milk with plant-based milk and use dairy-free cheese to suit dietary needs.

How do I prevent muffins from sticking?

Grease the muffin tin well with olive oil or use a nonstick spray to ensure easy removal after baking.

Can I add fresh herbs to these muffins?

Yes, fresh herbs like chives or parsley can be added to enhance flavor and freshness.

One-Pot Breakfast Casserole Muffins

Savory breakfast muffins loaded with eggs, cheese, and veggies, great for quick meals at any time.

Setup time
15 min
Heat time
25 min
Complete duration
40 min
Created By Jamie Torres

Classification Morning Wham

Complexity Easy

Cultural Background American

Output 12 Portions

Dietary considerations Meat-Free, No Gluten, Reduced-Carb

Components

Base

01 8 large eggs
02 1/3 cup whole milk or dairy-free alternative

Vegetables

01 1 cup baby spinach, chopped
02 1/2 cup red bell pepper, diced
03 1/2 cup onion, finely chopped

Protein (optional)

01 3/4 cup cooked bacon or breakfast sausage, crumbled

Cheese

01 1 cup shredded cheddar or Monterey Jack cheese

Seasonings

01 1/2 teaspoon salt
02 1/4 teaspoon black pepper
03 1/4 teaspoon smoked paprika

Oils

01 1 tablespoon olive oil or nonstick spray, for greasing

Directions

Phase 01

Preheat and Prepare: Preheat oven to 350°F. Grease a 12-cup muffin tin using olive oil or nonstick spray.

Phase 02

Combine Eggs and Milk: Whisk eggs and milk together in a large bowl until smooth and uniform.

Phase 03

Add Vegetables, Protein, Cheese, and Spices: Incorporate chopped spinach, diced bell pepper, onion, optional cooked bacon or sausage, shredded cheese, salt, black pepper, and smoked paprika into the egg mixture. Stir thoroughly to combine.

Phase 04

Portion Mixture: Distribute the mixture evenly into the muffin tin cups, filling each about three-quarters full.

Phase 05

Bake: Bake for 22 to 25 minutes until the muffins are set and lightly golden on top.

Phase 06

Cool and Serve: Allow muffins to cool in the tin for 5 minutes. Run a knife around edges to loosen, then remove. Serve warm or cool completely before storing.

Tools needed

  • 12-cup muffin tin
  • Mixing bowl
  • Whisk
  • Knife and cutting board
  • Oven

Allergy details

Review each component for potential allergens and seek professional healthcare guidance if you're uncertain.
  • Contains eggs, dairy (milk and cheese)
  • May contain pork if including bacon or sausage
  • For dairy-free: use plant-based milk and cheese alternatives

Nutrient breakdown (per portion)

These values are approximate guidelines only and shouldn't replace professional medical consultation.
  • Energy Value: 130
  • Fats: 9 g
  • Carbohydrates: 2 g
  • Proteins: 9 g