🥒🧀 Loaded Zucchini & Squash Bake for a Creamy Low Carb Dinner
Tender Zucchini and Yellow Squash Baked in a Creamy, Cheesy Sauce
There are evenings when I want something warm, creamy, and comforting, but I don’t want a heavy meal loaded with carbs.
That’s exactly when I make this Loaded Zucchini & Squash Bake.
I first made this on a weekend when I had several zucchini and yellow squash sitting in the refrigerator. I didn’t want them to go to waste, and I was craving something cheesy and comforting. I started thinking about a loaded baked potato—the creamy filling, melted cheese, crispy bacon, and green onions—and wondered if I could turn those same flavors into a low-carb vegetable casserole.
So I gave it a try.
It turned out even better than I expected.
The zucchini and yellow squash became tender without completely falling apart, the creamy sauce coated every slice, and the melted cheese on top turned beautifully golden. I added crispy bacon and green onions right before serving, and suddenly a simple vegetable bake felt like serious comfort food.
My family came into the kitchen while it was baking, and everyone wanted to know what smelled so good.
We ended up eating it straight from the baking dish.
Everyone loved it.
Now this is one of those recipes I make when I’m having a relaxing weekend and want something cozy, but it’s equally wonderful after a stressful day when I need dinner to be simple.
It’s creamy, cheesy, satisfying, and low in carbs without feeling like you’re missing anything.
❤️ Why You’ll Love This Low Carb Bake
Low-carb and satisfying
Creamy and cheesy
Loaded with fresh vegetables
Easy one-dish dinner
Great for busy weeknights
Family-friendly
Perfect as a side or light main dish
Excellent way to use summer squash
Easy to customize
Delicious leftover
📋 Recipe Information
Course: Dinner, Side Dish, Casserole
Cuisine: American, Comfort Food
Prep Time: 15 minutes
Cook Time: 35–40 minutes
Total Time: About 55 minutes
Servings: 6
Difficulty: Easy
Estimated Net Carbs: Approximately 7–9g per serving, depending on the ingredients used
🛒 Ingredients
For the Zucchini & Squash Bake
3 medium zucchini, thinly sliced
3 medium yellow squash, thinly sliced
1 small yellow onion, finely diced
3 cloves garlic, minced
4 ounces cream cheese, softened
½ cup heavy cream
½ cup sour cream
1 large egg
1 cup shredded cheddar cheese
½ cup shredded mozzarella cheese
¼ cup grated Parmesan cheese
1 teaspoon Italian seasoning
½ teaspoon garlic powder
½ teaspoon salt
¼ teaspoon black pepper
For the Loaded Topping
4 slices bacon, cooked and crumbled
2 green onions, thinly sliced
¼ cup extra shredded cheddar cheese
🍳 Equipment Needed
9×13-inch baking dish
Large skillet
Large mixing bowl
Whisk
Sharp knife
Cutting board
Paper towels or clean kitchen towel
👩🍳 How to Make Loaded Zucchini & Squash Bake
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C).
Lightly grease a 9×13-inch baking dish with nonstick cooking spray or a little butter.
🥒 Step 2: Prepare the Vegetables
Wash the zucchini and yellow squash and slice them into thin, even rounds.
Place them in a large bowl and sprinkle lightly with salt.
Let them sit for about 10 minutes.
This little step is important because zucchini and squash naturally contain a lot of water.
After 10 minutes, gently pat the slices dry with paper towels or a clean kitchen towel.
This helps prevent a watery casserole.
🧅 Step 3: Sauté the Onion and Garlic
Heat a skillet over medium heat.
Add the diced onion and cook for approximately 3–4 minutes, until it begins to soften.
Add the minced garlic and cook for another 30 seconds.
Remove from the heat.
The smell at this point is already wonderful.
🥣 Step 4: Make the Creamy Sauce
In a large mixing bowl, whisk together:
Softened cream cheese
Heavy cream
Sour cream
Egg
Italian seasoning
Garlic powder
Black pepper
Whisk until mostly smooth.
A few small cream cheese lumps are perfectly fine.
🧀 Step 5: Add the Cheese
Stir in:
¾ cup cheddar cheese
½ cup mozzarella
Parmesan cheese
Reserve the remaining cheddar for the topping.
The mixture should be creamy, cheesy, and thick enough to coat the vegetables.
🥒 Step 6: Combine the Vegetables and Sauce
Add the sliced zucchini, yellow squash, and sautéed onion and garlic to the bowl.
Gently toss everything together until the vegetables are coated in the creamy mixture.
Try not to stir too aggressively because the squash slices can break.
🍲 Step 7: Assemble the Casserole
Transfer the mixture to your prepared baking dish.
Spread everything into an even layer.
Sprinkle the remaining cheddar cheese over the top.
At this point, it already looks delicious.
🔥 Step 8: Bake
Cover the baking dish loosely with foil.
Bake for 20 minutes.
Remove the foil and continue baking for another 15–20 minutes, until the vegetables are tender and the cheese is melted and bubbling.
For a beautifully golden top, broil for 1–2 minutes at the end.
Keep a close eye on it because the cheese can brown quickly.
🥓 Step 9: Add the Loaded Toppings
Remove the casserole from the oven.
Scatter the crispy crumbled bacon and sliced green onions over the top.
Add another small sprinkle of Parmesan if desired.
Let the casserole rest for approximately 5–10 minutes before serving.
🍽️ Step 10: Serve
Scoop the warm casserole onto plates and serve immediately.
I love getting a little of the crispy, cheesy edge in every serving.
That’s where all the good stuff seems to gather.
💡 My Best Tips for Success
Remove Excess Moisture
This is probably the most important tip.
Zucchini and yellow squash release plenty of water during cooking. Salting and drying them beforehand helps give you a creamy casserole instead of a watery one.
Slice Everything Evenly
Similar-sized slices cook more evenly and give the casserole a better texture.
Soften the Cream Cheese
Room-temperature cream cheese blends much more easily into the sauce.
Don’t Overbake
You want tender vegetables, not completely mushy vegetables.
Let It Rest
Give the casserole a few minutes to cool before serving. The creamy sauce thickens slightly as it rests.
🌟 Delicious Variations
🥓 Extra Loaded Bacon Version
Add extra crispy bacon and green onions to make the casserole taste even more like a loaded baked potato.
🍗 Chicken & Zucchini Bake
Add 2 cups of cooked shredded chicken breast for a complete low-carb dinner.
🥩 Ground Beef Version
Brown 1 pound of lean ground beef and stir it into the vegetable mixture before baking.
🌶️ Spicy Loaded Bake
Add diced jalapeños and a pinch of crushed red pepper flakes.
🍄 Mushroom & Swiss Version
Add sautéed mushrooms and replace some of the cheddar with Swiss cheese.
🧄 Garlic Parmesan Version
Increase the garlic and add extra Parmesan for a stronger savory flavor.
🍽️ What to Serve With It
This bake can be served as a side dish or as the centerpiece of a lighter low-carb dinner.
Pair it with:
Grilled chicken
Roasted chicken thighs
Baked salmon
Grilled steak
Pork chops
Garlic shrimp
Turkey meatballs
Simple green salad
For a really easy dinner, I like serving this alongside grilled chicken and a crisp cucumber salad.
🥡 Storage Instructions
Refrigerator
Allow leftovers to cool before transferring them to an airtight container.
Refrigerate for up to 4 days.
Freezer
Because zucchini and squash contain a lot of water, freezing can change their texture and make the casserole softer.
For the best results, enjoy it fresh or refrigerated.
If you do freeze it, store cooled portions in airtight freezer-safe containers for up to 1 month.
Reheating
Microwave individual portions for approximately 60–90 seconds, or until hot.
For larger portions, cover with foil and reheat at 350°F (175°C).
Add a little extra cheese on top before reheating if you want that freshly baked finish.
📊 Approximate Nutrition Information
Per serving, based on 6 servings:
Calories: ~360
Protein: ~14g
Fat: ~29g
Carbohydrates: ~12g
Fiber: ~3g
Net Carbs: ~9g
Saturated Fat: ~15g
Sodium: ~650mg
Nutrition information is approximate and will vary depending on the specific brands and ingredients used.
❓ Frequently Asked Questions
Can I use only zucchini?
Absolutely. You can replace the yellow squash with additional zucchini.
Can I use only yellow squash?
Yes. The recipe works beautifully with either vegetable or a combination of both.
Why did my casserole turn out watery?
The most common reason is excess moisture from the zucchini and squash. Make sure you salt, drain, and pat the vegetables dry before assembling the casserole.
Can I make this without bacon?
Of course. The casserole is delicious without it. You can also use turkey bacon if preferred.
Can I add meat?
Yes. Cooked chicken, ground beef, turkey, ham, or sausage can turn this into a more substantial low-carb meal.
Can I substitute Greek yogurt?
Yes. Plain Greek yogurt can replace some or all of the sour cream, although it will give the casserole a slightly tangier flavor.
Can I prepare this ahead of time?
Yes. Assemble the casserole several hours ahead, cover, and refrigerate. Add a few extra minutes to the baking time if it’s going directly from the refrigerator into the oven.
Is this keto-friendly?
It can fit into a keto-style meal depending on your individual carbohydrate target and the specific ingredients you use. Check the nutrition information on your dairy products and other ingredients.
❤️ My Final Thoughts
This Loaded Zucchini & Squash Bake started with a simple goal: use up some vegetables and make dinner feel comforting.
It ended up becoming one of my favorite low-carb casseroles.
The creamy sauce hugs every slice of zucchini and squash, the cheese gets golden and bubbly in the oven, and the crispy bacon and fresh green onions give it that irresistible loaded-baked-potato feeling.
My family loved it the first time I made it, and I’ve kept coming back to it ever since.
I make it on weekends when I’m happy and want something warm and comforting on the table, but it’s just as good on those stressful days when I don’t want to spend hours cooking.
There’s something about pulling a bubbling casserole from the oven that makes the whole kitchen feel cozy.
And when that casserole happens to be packed with vegetables while still tasting rich and indulgent?
That’s a win.