Amazing Ground Beef Butternut Squash Casserole

You know those nights when you’re craving something cozy and comforting, but also want to feel GOOD about what you’re eating? I’ve been there! That’s exactly how my Ground Beef Butternut Squash Casserole came to be. I was messing around in the kitchen, trying to sneak more veggies into my family’s dinner without them even noticing (sneaky, I know!), and this magical combination just happened. It’s seriously packed with protein and goodness, but tastes like pure comfort food. My picky eaters didn’t even question the color!

Why You’ll Love This Ground Beef Butternut Squash Casserole

This Ground Beef Butternut Squash Casserole is a lifesaver! Here’s why it’s going to become a staple in your house:

• It’s surprisingly easy to whip up, perfect for those crazy weeknights.
• Your whole family will gobble it up – seriously, it’s a crowd-pleaser!
• It’s loaded with high-protein ground beef and a ton of sneaky veggies like butternut squash, bell pepper, and kale.
• The flavor is just pure comfort food magic: cheesy, savory, and so satisfying.
• Leftovers are a dream and reheat like a charm!
• You get all the cozy vibes of a casserole without any of the guilt.

Ground Beef Butternut Squash Casserole Ingredients

I always try to get my butternut squash pre-cubed if I can find it because, let’s be honest, de-seeding and cubing squash can be a workout! But fresh is totally fine if you’re up for it. And my absolute fave is a good quality cheddar cheese – it just melts like a dream! For more ideas on high-protein ground beef meals, check out these high-protein ground beef bowls!

• 1 pound butternut squash cubes, frozen or fresh
• 1 large bell pepper, chopped
• 1 tablespoon olive oil
• 1 teaspoon paprika
• 1 teaspoon chili powder
• 1/2 teaspoon garlic powder
• Salt to taste
• Black pepper to taste
• 1 can black beans, drained and rinsed
• 1 cup cooked ground beef (I like to use 85/15 for good flavor!)
• 1 cup shredded cheddar cheese, divided
• 1 cup chopped kale
• 1/4 teaspoon crushed red pepper, optional (for a little kick!)

Step-by-Step Ground Beef Butternut Squash Casserole Instructions

Alright, let’s get cooking! First things first, preheat your oven to 375 degrees Fahrenheit. This is key for getting everything nice and roasted.

Pop your butternut squash cubes and chopped bell pepper into a good-sized casserole dish. Drizzle it all with olive oil and give it a good toss so every piece is coated. You want that little bit of oil to help everything roast up beautifully.

Slide that dish into the oven and let it roast for about 20 minutes. We just want the squash to start softening and get a little tender, but it should still hold its shape really well. We don’t want it mushy yet!

Carefully pull the dish out of the oven. You might see a little liquid from the veggies, so just carefully drain that off. Then, it’s time to get all those yummy flavors in there! Sprinkle on the paprika, chili powder, garlic powder, salt, and black pepper. Stir in your drained black beans, that already-cooked ground beef (make sure it’s cooked through to 160°F for food safety!), your chopped kale, and about half of that shredded cheddar cheese. Give everything a good mix until it’s all combined nicely – imagine all those textures and flavors coming together!

Spread that mixture out into an even layer in the casserole dish. Now, top it all off with the rest of that shredded cheese. Ooooh, it’s going to get melty and gooey!

Pop it back into the oven for about 10 more minutes. You’re looking for that cheese to be completely melted and bubbly, and for the veggies to be perfectly tender. If you’re feeling a little adventurous, sprinkle on some crushed red pepper before you serve it. It adds just a tiny bit of heat that’s lovely. You can find loads more inspiration for healthy air fryer cauliflower recipes and other awesome high-protein casserole recipes too!

Serving Suggestions for Your Ground Beef Butternut Squash Casserole

This casserole is a meal in itself, but here are a few things that really make it shine:

A bright and zesty Mediterranean Salad is fantastic to cut through the richness, giving you a fresh crunch.

Some perfectly roasted Air Fryer Cauliflower adds another lovely roasted veggie element that complements the squash beautifully.

A dollop of plain Greek yogurt or sour cream on top adds a lovely creamy tang, almost like a quick, easy sauce!

Storing and Reheating Your Ground Beef Butternut Squash Casserole

Got leftovers? Lucky you! This casserole stores like a dream. Just pop any extra into an airtight container and keep it in the fridge for up to 3, maybe 4 days. I find it holds up really well, which is fantastic for busy weeks. For meal prep magic, you can even portion it out into individual containers right from the start!

When you’re ready to reheat, skip the microwave if you can. It tends to make things a bit… well, sad and soggy. Instead, pop your portion back into a moderate oven (around 350°F) for about 10-15 minutes until it’s heated through. This way, you get that lovely texture back. You can totally prep this ahead of time; take a peek at these high-protein breakfast meal prep ideas for more make-ahead inspiration!

Frequently Asked Questions About Ground Beef Butternut Squash Casserole

Got questions about this tasty casserole? I’ve got answers!

Can I use fresh butternut squash?

Absolutely! If you use fresh, just make sure you cut those cubes pretty evenly – that helps them roast up consistently. Frozen is just a little bit easier for me since it’s already cubed!

Can I make this ahead of time?

You sure can! I love making this for meal prep. You can assemble the whole casserole (minus the final cheese topping) a day ahead and then just top with cheese and bake when you’re ready. Or, bake it completely and reheat individual portions. For more make-ahead ideas, check out these keto ground beef casserole options!

What about vegetarian substitutions?

Sure thing! You can totally swap out the ground beef. Try using crumbled tofu or tempeh, or even extra beans and veggies like mushrooms or zucchini. Just make sure they’re cooked before adding them to the mix!

Enjoy Your Delicious Ground Beef Butternut Squash Casserole!

I really hope you give this Hearty Ground Beef Butternut Squash Casserole a try! It’s such a comforting and nourishing dish that’s perfect for busy weeknights. Let me know in the comments how yours turned out, and don’t forget to share your photos if you can! You can also find lots more yummy ideas on my Pinterest page!

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