High Protein Sweet Potato Gratin

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Plate of sweet potato gratin with a big dish with the remaining gratin in the background.

Nutrition

Calories: 360kcal | Carbohydrates: 29g | Protein: 22g | Fat: 16g | Fiber: 10g
This is a spin on scalloped potatoes; we’re using sweet potatoes instead! Because of the extra firm silken tofu, we end up at 25% protein!
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Servings 6

Ingredients

  • 22 oz Extra Firm Silken Tofu I used Mori Nu
  • 1 Onion diced
  • 1 bulb Garlic minced
  • 3 Sweet Potatoes medium, thinly slice (recommend using a mandolin)
  • 6 cup Baby Bella Mushrooms sliced
  • 6 cup Baby Spinach
  • 1/2 cup Soy Milk unsweetened
  • 3/4 cup Nutritional Yeast
  • 2 tsp Salt
  • 1 tsp Onion Powder
  • 1 tsp Garlic Powder
  • 1 tsp Thyme
  • 1/2 tsp Nutmeg
  • 1/2 tsp Pumpkin Pie Spice
  • 2 cup Vegan Shredded Cheddar Cheese I used Violife Cheddar shreds

Instructions
 

  • Pre-heat oven to 375 F (191 C).
  • In a medium-heat skillet, saute onions until translucent. Add garlic and saute for another 3 - 5 minutes, stirring regularly to avoid burning.
  • Peal and thinly slice your sweet potatoes (I used a mandolin - be very careful if you do this). I shoot for 1/8" thick slices.
  • In a blender, blend the cooked onion/garlic, milk, nutritional yeast, tofu, and all the spices until smooth and creamy.
  • In a medium-heat skillet, saute the mushrooms and spinach; you want to get most of the moisture out of it.
  • In a casserole dish, spread a thin layer of our sauce.
  • Then layer as follows:
  • Sweet Potatoes
  • Sauce
  • Mushroom/spinach
  • Cheese
  • Sweet Potatoes
  • Sauce
  • Mushroom/spinach
  • Cheese
  • Sweet Potatoes
  • Sauce
  • Mushroom/spinach
  • Cheese
  • Sweet Potatoes
  • Sauce
  • Cook for 45minutes, covered with aluminum foil.
  • Take out, add remaining shredded cheese on top and cook for an additional 10- 15 minutes. This will keep the cheese from drying out.
  • You will know this dish is done when sweet potatoes are fork-tender.

Equipment

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Notes

Track this on My Fitness Pal searching:
PDV High Protein Sweet Potato Gratin
Did you make this recipe?Mention @proteindeficient.vegan

I’m sure you’ve had potato gratin, but have you ever had sweet potato gratin? This was my first time making it and I’m a huge fan! I feel like it’s a little more flavorful than your typical potato gratin, because it’s a good mix of salty and sweet! It also packs in a lot of veggies too!

This sweet potato gratin is actually pretty high in protein, because we are using silken tofu and nutritional yeast in the sauce. If you haven’t tried using silken tofu in your creamy sauces to add extra protein, you’re missing out! It’s an absolute game changer!

If you are looking for some more high protein holiday dishes, be sure to check out my High Protein Scalloped Potatoes and High Protein Green Bean Casserole recipes!

Ingredients

  • Extra Firm Silken Tofu – make sure to use silken tofu for this recipe or it will not turn out right. Regular (firm/extra firm) tofu has a much different texture and taste. You can find silken tofu at most grocery stores and also buy a shelf-stable option online. My go-to is Mori-Nu Extra Firm Silken Tofu. You can use any silken tofu for this recipe.
  • Soy milk – my plant-based milk preference is soy milk because of it’s macros, but you can use your favorite!
  • Onion, Garlic – these veggies add a ton of flavor to the sauce.
Onion, garlic, soy milk and silken tofu.
  • Mushrooms – I used baby bella mushrooms, but any mild flavored mushrooms will work. Did you know that mushrooms are around 40% protein on a calorie basis?
  • Baby spinach – I prefer to use fresh baby spinach, but frozen spinach will work too (just make sure to get the excess water out).
Spinach and mushrooms.
  • Nutritional yeast – this is a shelf-stable ingredient that’s often used in vegan cooking to add a savory and cheesy flavor. You can find this at most grocery stores and also buy it online. Nutritional Yeast is also pretty high in protein!
  • Salt, onion powder, garlic powder, thyme, nutmeg, pumpkin pie spice.
Salt, garlic powder, onion powder, thyme, pumpkin pie spice, nutmeg and nutritional yeast.
  • Sweet potatoes – I used about 3 medium ones, and thinly sliced them with a mandolin. If you’re going that route, be careful!
  • Vegan Cheddar Shreds – I like to use Violife for shredded cheese, but you can use your favorite brand!
Shredded vegan cheese and sweet potatoes.

Directions

  • Pre-heat the oven to 375 F (190 C).
  • In a medium-heat skillet, saute onions until translucent. This should take around 3-5 minutes. Stir regularly to avoid burning/sticking.
  • Add garlic and saute for another 3 – 5 minutes, stirring regularly to avoid burning.
Small glass bowl of sauteed onion and garlic.
  • Clean and slice mushrooms.
  • In a medium-heat skillet, saute the mushrooms and spinach – you want to get most of the moisture out of it otherwise it will be very liquid and soupy.
Sauteed spinach and mushrooms.
  • Peel and thinly slice the sweet potatoes. I used a mandolin – be very careful if you do this. It’s important to make sure that the slices are a similar width, so that everything cooks evenly. I shoot for 1/8″ thick slices.
Thinly sliced sweet potatoes and a mandolin.
  • In a blender, blend the cooked onion/garlic, milk, nutritional yeast, silken tofu, and all the spices until smooth and creamy.
  • In a casserole dish, spread a thin layer of the sauce.
  • Then layer as follows:
    • Sweet Potatoes
    • Sauce
Sweet potato gratin - silken tofu sauce layer.
  • Mushroom/spinach
Sweet potato gratin - spinach and mushroom layer.
  • Cheese
Sweet potato gratin - the cheese layer.
  • Sweet Potatoes
Sweet potato gratin - sweet potato layer.
  • Sauce
  • Mushroom/spinach
  • Cheese
  • Sweet Potatoes
  • Sauce
  • Mushroom/spinach
  • Cheese
  • Sweet Potatoes
  • Sauce
  • Cover with aluminum foil and cook for 45minutes.
  • Take out, add remaining shredded cheese on top and cook for an additional 10-15 minutes. This will keep the cheese from drying out.
Sweet potato gratin straight out of the oven!
  • You will know this dish is done when sweet potatoes are fork-tender.

Silly Little Haiku

Is this a gratin?

Or just scalloped potatoes?

I never know which

Author


Protein Deficient Vegan

Protein Deficient Vegan

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