Dairy Free Breakfast Casserole

Melissa

By: Melissa

Updated: February 2, 2026

This dairy free breakfast casserole is the ultimate make-ahead breakfast – no cheese necessary. Packed with savory sausage, diced ham, veggies, and crispy tater tots, it's easy to prep the night before and bake in the morning for a stress-free, crowd-pleasing breakfast.

A breakfast casserole topped with golden brown tater tots, garnished with chopped green onions, sits in a white baking dish. Strawberries, extra green onions, plates, and a yellow-checkered cloth surround it.
A slice of breakfast casserole with eggs, ham, cheese, and vegetables is served on a plate with a fork. Green onions are sprinkled on top, and strawberries sit in the background for a perfect breakfast casserole pairing.

Why I love tater tot breakfast casserole

I love making breakfast casseroles because they’re so easy to throw together, and this tater tot breakfast casserole is one of my favorites because it’s hearty, satisfying, and can be prepped the night before.

The breakfast casserole turned out amazing. The eggs and tater tots are extra fluffy and the flavor from all the mix-ins really work. It’s like my favorite omelet/breakfast scramble in a make-ahead casserole form.

More dairy free breakfast recipes: dairy free pancakes / scrambled eggs without milk / dairy free french toast / dairy free cinnamon rolls / asparagus quiche with bacon

A breakfast casserole topped with golden brown tater tots, garnished with chopped green onions, sits in a white baking dish. Strawberries, extra green onions, plates, and a yellow-checkered cloth surround it.

Ingredient notes:

  • Breakfast sausage – I use a standard breakfast sausage roll (the kind you cook and crumble), but you could use turkey sausage or chicken sausage if you prefer. Just make sure whatever meat you use is fully cooked before adding it to the casserole.
  • Ham – Diced ham adds extra protein and a slightly smoky flavor. You can swap it for cooked bacon if you want, or just leave it out.
  • Bell pepper – Any color works, but red or yellow adds a nice sweetness. You could also add mushrooms, diced onions, or spinach if you want more veggies in the mix.
  • Green onion – I like to use green onion because it’s adds a more subtle onion flavor without any crunch, plus I love the color green onion adds to the casserole. Chives would be a great swap. If you want to use onion, I recommend cooking them down a bit so they’re softened when they go into the casserole.
  • Dairy free milk – Lately, we’ve been using flax milk, but we also like to use oat milk or almond milk. Just make sure it’s unsweetened and plain.

Making changes to a recipe can result in recipe failure. Any substitutions listed below are simple changes that I believe will work in this recipe, but results are not guaranteed.

A close-up of a slice of tater tot breakfast casserole on a plate, showing golden brown tater tots on top, a filling with meat and vegetables, and garnished with chopped green onions. A fork rests beside the serving.
A plated square portion of breakfast casserole garnished with green onions sits next to a fork, a bowl of strawberries, salt and pepper shakers, a small dish of sliced green onions, and a yellow checkered napkin.
A woman with long, wavy hair and a polka dot shirt sits on a kitchen counter, smiling and laughing. Plates of muffins, cookies, and pistachio cake are beside her in a bright kitchen with white cabinets and modern style.

Melissa’s tips + tricks:

  1. Make ahead tips: You can make this casserole ahead of time if you want. The night before would be perfect, but you could prep everything a few days in advance. If you’re going more than one day in advance, try mixing the egg mixture and storing it separately, so nothing gets soggy. When you’re ready to cook, just pour the eggs over and bake.
  2. Customize the mix-ins. This recipe is super flexible. Try making it a Mexican-style breakfast casserole by using chorizo, adding black olives, and topping with pico de gallo.
  3. Storage. Leftovers keep in the fridge for 3-4 days in an airtight container. Reheat individual portions in the microwave for 1-2 minutes, or reheat the whole thing covered in the oven at 350°F until warmed through.
Close-up of a breakfast casserole topped with crispy tater tots, garnished with chopped green onions and small pieces of red and pink ingredients, likely ham or bell peppers, in a white baking dish.

Frequently asked questions

Do I need to thaw the tater tots first?

You add them to the casserole straight from the freezer. They’ll cook perfectly in the oven as the casserole bakes.

Can I freeze this casserole?

Yes, you can freeze it! Let it cool completely, wrap tightly, and freeze for up to 2 months. Thaw overnight in the fridge before baking as directed.

How do I know when the casserole is done?

The eggs should be set (not jiggly) and the tater tots on top should be golden brown. If the tots are browning too quickly, you can cover the casserole loosely with foil for the last 10-15 minutes of baking.

Can I add cheese to this recipe?

Absolutely! For dairy free cheese, I recommend mixing no more than 1 cup into the casserole. I find that dairy free cheese doesn’t melt well on the top, but if you’re not dairy free, you can add some in the casserole and on top.

A golden-brown breakfast casserole with tater tots in a white baking dish, garnished with chopped green onions and red peppers. Sliced green onions and strawberries are in bowls nearby, with a yellow checkered napkin on the side.
A breakfast casserole topped with golden brown tater tots, garnished with chopped green onions, sits in a white baking dish. Strawberries, extra green onions, plates, and a yellow-checkered cloth surround it.

Dairy Free Breakfast Casserole

Print Recipe Pin Recipe
Prep Time 20 minutes
Cook Time 1 hour
Total Time 1 hour 20 minutes
Servings 12 servings
This dairy free breakfast casserole is the ultimate make-ahead breakfast – no cheese necessary. Packed with savory sausage, diced ham, veggies, and crispy tater tots, it's easy to prep the night before and bake in the morning for a stress-free, crowd-pleasing breakfast.

Ingredients

  • 1 16-ounce roll breakfast sausage
  • 1 cup diced ham
  • 1 cup diced bell pepper
  • 1/2 cup sliced green onion
  • 1 pound tater tots
  • 8 large eggs
  • 1 cups dairy free milk
  • salt & pepper - to taste

Instructions

  • Prep. Preheat oven to 350˚F. Chop vegetables and measure ingredients before you begin.
  • Cook the sausage. Heat a large skillet to medium-high and brown the sausage until cooked through. Using a slotted spoon, transfer the sausage without the rendered grease, to a bowl. Set aside.
  • Mix the eggs. Add the eggs and milk to a large bowl and season with salt & pepper. Whisk until smooth.
  • Assemble the casserole. Add the cooked sausage, bell pepper, green onion and ham. Stir to combine. The pour the milk mixture over and stir to distribute the liquid in the pan. Top with tater tots.
  • Bake the casserole. Transfer the pan to the oven and bake for about 45 – 55 minutes or until eggs have set and tater tots are golden brown. Remove from oven and allow the casserole to cool for about 10 minutes before serving.

Video

Nutrition

Calories: 251kcal Carbohydrates: 11g Protein: 13g Fat: 17g Trans Fat: 0.1g Cholesterol: 156mg Sodium: 689mg Fiber: 1g Sugar: 1g Vitamin C: 20mg