How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Crock-Pot Brunch Casserole?

You need 13 ingredients. The key ingredients include: 1 1/2 lb. lean ground beef, 1 large onion, finely chopped, 2 Tbsp. olive oil or butter, 2 cloves garlic, minced, and more.

Is Crock-Pot Brunch Casserole suitable as breakfast?

Yes, Crock-Pot Brunch Casserole falls under the Breakfast category and is a great choice for this type of meal.

How do I store leftover Crock-Pot Brunch Casserole?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Crock-Pot Brunch Casserole Recipe

Name: Crock-Pot Brunch Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 1/2 lb. lean ground beef; 1 large onion, finely chopped; 2 Tbsp. olive oil or butter; 2 cloves garlic, minced; 1 (4 oz.) can sliced mushrooms, drained; 2 tsp. salt; 1/4 tsp. nutmeg; 1/2 tsp. leaf oregano; 1/2 (10 oz.) pkg. frozen chopped spinach, thawed and drained; 3 Tbsp. flour; 6 eggs, beaten; 3/4 c. milk, scalded; 1/2 c. grated sharp Cheddar cheese

Start your day right with this Crock-Pot Brunch Casserole recipe. Made with lean ground beef, onion, olive oil and garlic. Easy step-by-step instruction…

This Crock-Pot Brunch Casserole relies on simple, everyday ingredients such as lean ground beef, large onion, finely chopped, olive oil or butter and garlic, minced. It comes together quickly and makes 4 servings, at about 924 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's an easy way to start the day, whether you're cooking a relaxed weekend breakfast or need something satisfying before a busy morning. Pair it with fresh fruit or your favorite hot drink to round out the meal.

Updated Jun 30, 2026

Serves 4 Breakfast

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Crock-Pot Brunch Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions