These macro-friendly Brownie Baked Squash Oats are delicious, easy, and just might be the fix for your dessert craving.

A Quick Look At The Recipe
- Recipe Name: Brownie Baked Squash Oats
- Ready In: 60 minutes
- Serves: 8 servings
- Calories: 150 cal
- Protein: 12g
- Fat: 3g
- Carbs: 19g
- Why You'll Love It: These macro-friendly Brownie Baked Squash Oats are delicious, easy, and just might be the fix for your dessert craving (or a tasty breakfast/snack)!
About This Recipe
We are several batches in at my house and there’s no going back — these Brownie Baked Squash Oats are a new staple! They’ve become my favorite afternoon treat. And Sophia’s breakfast and dessert!
I don’t want to trick you, so I need to make my disclaimer. These are not brownies or cake. Brownies and cake need FATS— butter or oil etc. So don’t be expecting crispiness or chewiness or fudginess. All of that takes fat! This is it’s own thing. More of a firm square of chocolate oatmeal… made extra “macro-friendly” since it’s bulked up with squash, and I’m hooked!
Ingredients and Substitutions
- Yellow summer squash or zucchini: Finely grated or riced in a food processor.
- Liquid egg whites: A great way to add extra protein to these oats!
- Old-fashioned oats: Rolled oats or old-fashioned oats are my preference for these baked oats. I love how hearty they are and make this more of a dense cake. You could also use quick oats but they will have a little lighter, fluffier, more cake-like texture. I do not recommend using steel-cut oats.
- Creamer: I love the Califia Farms almond milk creamer or you can just sub your favorite milk.
- Protein powder: Use your favorite chocolate protein powder. I’m LOVING the brownie batter by Clean Simple Eats (Use Lillie for 10% off) or the chocolate protein powder by Active Stacks (Use Lillie for 10% off).
- Stevia: Liquid vanilla stevia or monkfruit. I prefer the liquid version as I think it blends best but any sweetener of choice works!
- Cocoa powder: I love to use jet black cocoa powder (use code Lillie10 for 10% off) to give these oats that really rich, dark chocolatey flavor but you can use any cocoa powder you love!
- Vanilla extract: Adds the perfect amount of sweetness!
- Baking powder: Make sure your baking powder is fresh (less than 3 months old).
- Chocolate chips: I love to use the mini chocolate chips so you get little pools of chocolate in every bite but regular chocolate chips also work.

How to Make Brownie Baked Squash Oats
- Pre-heat oven to 350 degrees.
- Wash and dry your squash and grate them finely. OR, you can use a food processor or salsa maker to “rice” them if you don’t like the strands. OR, use your food processor to get it smooth if you prefer no chunks. (This has become our favorite method.)
- In a large bowl, combine your riced squash (no need to drain), liquid egg whites, oats, creamer, protein powder, stevia, cocoa powder, vanilla, and baking powder. Mix well and pour into a greased 9×9 pan. (**edited from 9×13 because thicker is better!) Sprinkle the top with 2 Tbsp mini chocolate chips and bake for 35-40 minutes or until set. The bottoms will be wet but that’s ok! It gets better as it sits in the fridge. And the cook time does seem to vary a bit with your protein powder. Keep an eye on them!
- Let them cool before cutting into 8 pieces. I love mine chilled, then served in a bowl with cashew milk, a few tablespoons of almond milk Reddi Whip, chopped strawberries, and a few more mini chocolate chips! OR, just some reddi whip, a little drizzle of natural peanut butter, and a pinch of flake salt. We also love them with yogurt and fruit. A perfect breakfast, afternoon snack, or healthy dessert.
- Make sure to store in the refrigerator and enjoy!

How to Serve Your Brownie Baked Squash Oats
They smell like heaven coming out of the oven. BUT, I much prefer my brownie oats chilled in the fridge, then served in a bowl with cashew milk, a few tablespoons of almond milk reddi whip, chopped strawberries, and a few more mini chocolate chips!
I think pouring milk on top weirds some of you out and THAT’S cool. But I grew up eating cake in a bowl with milk poured on top. SO maybe it’s nostalgic, or maybe I’m just letting you in on the best kept secret, arming you with the tools to maximize your baked brownie oat enjoyment. I’ll let you decide.
We also love them with yogurt and fruit. And that’s normal. Or a peanut butter drizzle. A perfect breakfast, afternoon snack, or healthy dessert. You can’t go wrong!

For More Delicious Recipes
- Apple Crisp Yogurt and Cottage Cheese Bowl
- Dark Chocolate Protein Waffles
- Double Chocolate Mighty Muffin Yogurt Bowl
- Extra Light High-Protein Pumpkin Pie Breakfast Bars
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Brownie Baked Squash Oats
Ingredients
- 2 yellow summer squash or zucchini finely grated, riced, or processed in food processor until mostly smooth* (520 g)
- 1 cup liquid egg whites 240 g
- 1 ⅓ cup old fashioned oats 120 g
- ¼ cup Califia Farms almond milk creamer 60 g (or just sub your favorite milk)
- 2 scoops chocolate protein powder** 64 g- I’m LOVING the brownie batter by CSE
- 1 Tbsp liquid vanilla stevia or monkfruit 15 g***
- ¼ cup jet black cocoa powder 20 g
- 2 tsp vanilla
- 2 tsp baking powder
- 2 Tbsp mini chocolate chips 28 g
Instructions
- Pre-heat oven to 350 degrees.
- Wash and dry your squash and grate them finely. OR, you can use a food processor or salsa maker to “rice” them if you don’t like the strands. OR, use your food processor to get it smooth if you prefer no chunks. (This has become our favorite method.)
- In a large bowl, combine your riced squash (no need to drain), liquid egg whites, oats, creamer, protein powder, stevia, cocoa powder, vanilla, and baking powder. Mix well and pour into a greased 9×9 pan. (**edited from 9×13 because thicker is better!) Sprinkle the top with 2 Tbsp mini chocolate chips and bake for 35-40 minutes or until set. The bottoms will be wet but that's ok! It gets better as it sits in the fridge. And the cook time does seem to vary a bit with your protein powder. Keep an eye on them!
- Let them cool before cutting into 8 pieces. I love mine chilled, then served in a bowl with cashew milk, a few tablespoons of almond milk Reddi Whip, chopped strawberries, and a few more mini chocolate chips! OR, just some reddi whip, a little drizzle of natural peanut butter, and a pinch of flake salt. We also love them with yogurt and fruit. A perfect breakfast, afternoon snack, or healthy dessert.
- Make sure to store in the refrigerator and enjoy!
Notes
Nutrition
Tried this recipe?
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I’ve made this a few times and it never disappoints! I used CSE Chocolate Peanut Butter protein powder this time and it was super good! I would have added some PB2 if I had it on hand to amp up the peanut flavor. It is definitely a staple in our house!
These are absolutely amazing! Have made a vanilla version the past month and now making the chocolate. Lillies recipes NEVER disappoint ❤️
Loved these! Highly recommend following Lillie’s instructions for serving – was skeptical about the milk but it adds so much. I’m generally a vanilla over chocolate person but will definitely make these when the craving for a macro-friendly chocolatey dish strikes and would make these every week if I were a chocolate lover. Lillie’s snickerdoodle baked oats recipe are my new go-to for when I’m not feeling chocolate.
Do they handle being frozen?
Yes!I’ve only done it once with a little square, You’ll definitely want to let it thaw since they get rock hard. But they thaw nicely!
I wondered what this would taste like but hey I grew up eating zuchinni chocolate cake, so it seemed like it could work. I really liked it. I forgot the milk but it’s still great. I put it on top of greek yogurt for a little more protein. Love the added veggies. Thanks!
Finally got around to making this recipe this week. Being a little fearful of a texture issue, I opted to go the route of blending everything smoothly in my blender then adding the chocolate chips. It!Was!Wonderful!!!! I have so many protein tubs on my shelf right now and am soooo excited over the upcoming possibilities! This week, I plan to forgo the blending to see which texture I like best. Thank you thank you thank you for this recipe!
I was skeptical because I’ve made similar recipes that never quite hit the mark but these are great! These have great texture, not eggy like others, and you really can’t taste the squash when eaten as recommended. Just chocolatey goodness and the almond ready whip takes it over the top. I’ve made a couple pans of it and plan to make many more!
On my third batch!! LOVE these.
Exactly as so thoughtfully described. Follow Lillie’s directions on how to serve and you’ll be even happier.
Yum
This is so yummy! Love it for breakfast with yogurt and all the toppings!!!
Amazingly good. Spooky season = pumpkin spice
I made according to recipe w a few changes based on my pantry.
I used a 1/4 cup brown sugar Swerve instead of stevia. Added 1.5 teaspoons vanilla salt, 1 T almond extract and used Lilly’s Stevia sweetened chocolate chips. So perfectly delish w plain yogurt!
Final edit: with fall colors & chills all around, I added 1.5 tsp pumpkin pie spices. Such a good combo. Like everyone else- I’m hooked! Thanks Lillie!
Amazingly good. Spooky season = pumpkin spice
I made according to recipe w a few changes based on my pantry.
I used a 1/4 brown sugar Swerve instead of stevia and used Lilly’s Stevia sweetened chocolate chips. So perfectly relish.
Final edit: with fall colors & chills all around, I added pumpkin pie spices and such a good combo. Like everyone else- I’m hooked! Thanks Lillie!
Love this recipe so very much!! So easy to make, tastes incredible, and it used up a whole zucchini that I’ve been staring at for a while now. My kiddos and husband love it too!! #winner
I’ve made at least 10 pans of this – it’s fabulous!! Thank you for another fabulous recipe that even my kidlets enjoy!! ❤️