• Ree's Life
  • Food and Recipes
  • Home and Life
  • Holiday
  • Beauty
  • Style
  • News and Entertainment
  • Giveaways
  • Subscribe
  • New: Ree's Best Family Meals
  • The Pioneer Woman Products
  • About The Pioneer Woman
  • Newsletter
  • Follow
Privacy NoticeTerms Of Use
Skip to Content
Logo
  • Ree's Life
  • Food & Recipes
  • Weddings
  • Fall Recipes
  • The Pioneer Woman Products
Subscribe
sign in
  1. Food and Cooking
  2. Recipes
  3. Hash Brown Breakfast Casserole

Hash Brown Breakfast Casserole

Loaded with tomatoes, pesto, and mozzarella cheese.

By Ree DrummondPublished: Sep 5, 2024
Star FillStar FillStarStarStar
2
1 Rating
Arrow Circle Down IconJump to recipe
the pioneer woman's hash brown casserole recipe
C.W. Newell
Yields:
8 serving(s)
Prep Time:
15 mins
Total Time:
1 hr 15 mins

Do you ever wake up thinking about what you're going to eat for breakfast? I do, especially when I know a breakfast casserole is waiting for me.

This herbalicious dish is sort of like if Caprese salad became a breakfast casserole, which just so happens to align with every single one of my hopes and dreams. It's full of tomatoes, mozzarella, and one of my all-time favorite ingredients: pesto. I just use the jarred stuff for quick breakfasts like this, but you could make your own pesto if your garden is still overflowing with basil. This casserole also has eggs, lots of cheese, and hash browns—that's what makes it so hearty and so dang good!

Since there's no meat involved (though some breakfast sausage patties or candied bacon on the side would be scrumptious), this casserole is a breeze to throw together quickly. I especially love it for a lighter holiday brunch dish served with a simple arugula salad (a slice of avocado on top wouldn't hurt either!). It is also a great meal prep option. Make it on a Sunday, pop it in the fridge, and reheat individual portions in the microwave. Every pookie head in your house will wake up happy to see it!

Do you have to thaw the hash browns first?

Nope! Just toss 'em into the baking dish still frozen. They'll thaw and cook with everything else in the oven!

Can hash brown breakfast casserole be assembled the night before?

Yes indeed. This dish can be assembled up to 12 hours in advance, covered, and stored in the fridge, but wait to add the tomatoes and mozzarella pearls until just before baking. Let the casserole hang out on the countertop while the oven preheats to knock off the chill before you pop it in the oven.

Advertisement - Continue Reading Below

Ingredients

  • 2 Tbsp.

    salted butter, for the baking dish

  • 1

    (16-oz.) package frozen diced hash browns with onions

  • 2 cups

    shredded mozzarella (about 8 oz.)

  • 3/4 cup

    milk

  • 1/2 cup

    half-and-half

  • 1/4 cup

    prepared pesto

  • 4

    large eggs

  • 4

    green onions, sliced

  • Kosher salt and black pepper

  • 2 cups

    cherry tomatoes, halved

  • 1 cup

    mozzarella pearls

  • 8

    basil leaves, torn if large (optional)

Directions

    1. Step 1Preheat the oven to 350°F. Butter a 13-by-9-inch baking dish and add the hash browns, spreading them into an even layer. 
    2. Step 2In a large bowl, combine the shredded mozzarella, milk, half-and-half, pesto, eggs, green onions, and some salt and pepper. Pour the mixture over the hash browns and top with the cherry tomatoes and mozzarella pearls. 
    3. Step 3Cover with foil, and bake for 30 minutes. Remove the foil, and continue baking until the center is set and edges are bubbly, 30 to 35 minutes. 
    4. Step 4Let the casserole rest for a few minutes before cutting into squares. Sprinkle with the basil leaves, if using, and serve.
Love this recipe? Try one of these next!
  • Sausage Breakfast Casserole
  • Tater Tot Breakfast Casserole
  • Christmas Breakfast Casserole
Advertisement - Continue Reading Below

Casseroles

the pioneer woman's chicken noodle casserole recipe

Chicken Noodle Casserole Is Cozy Dinner Perfection

the pioneer woman's sausage breakfast casserole recipe

Make-Ahead Sausage Breakfast Casserole

the pioneer woman's taco casserole recipe

Layer Taco Casserole With Beef, Chips, And Cheese

pioneer woman metal bakeware

You'll Love Ree's Gorgeous New Bakeware

Advertisement - Continue Reading Below
best chicken casserole recipes

30 Chicken Casseroles for a Cozy Comfort Food

dishes at a midwestern potluck

17 Best Dishes at a Midwestern Potluck

church potluck recipes

The Most Heavenly Dishes for Your Church Potluck

cornbread casserole on a plate drizzled with honey

45 Comforting Casseroles to Make This Fall

the pioneer woman's zucchini lasagna recipe

Swap Pasta for Veggies in Ree's Zucchini Lasagna

easy casserole recipes

All the Easy Casseroles You'll Ever Need

healthier casserole recipes

Healthier Casseroles That Won't Leave You Hungry

the pioneer woman's sweet onion casserole recipe

This Sweet Onion Casserole Is Pure Comfort Food

Advertisement - Continue Reading Below
Logo
x
tiktok
facebook
instagram
pinterest
SubscribeAbout The Pioneer WomanOther Hearst SubscriptionsNewsletter
A Part of Hearst Digital Media

A Part of Hearst Digital Media

We may earn commission from links on this page, but we only recommend products we back.

©2025 Hearst Magazine Media, Inc. All Rights Reserved.

Privacy NoticeCA Notice at CollectionYour CA Privacy Rights/Shine the LightDAA Industry Opt OutTerms of UseSitemap
Cookies Choices