Vegan Tempeh Bolognese Spaghetti Sauce
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This tempeh bolognese is a rich, savory vegan pasta sauce that comes together in about 30 minutes. Crumbled tempeh gives the sauce a hearty, meaty texture while adding a solid hit of plant-based protein. Combined with mushrooms, sun-dried tomatoes, and a simple tomato base, it’s one of the easiest ways to get a satisfying vegan bolognese on the table fast.
If you like bold, protein-rich pasta sauces, you should also check out this Vegan Walnut Bolognese or the Vegan Lentil Bolognese for a different spin on plant-based ragu.
Why Tempeh Works So Well in Bolognese Sauce
Tempeh is made from fermented soybeans pressed into a firm block. When you crumble it, you get small, irregular pieces that hold their shape during cooking and soak up flavor from the sauce. The fermentation process gives tempeh a slightly nutty, umami-rich taste that pairs naturally with tomatoes and Italian seasonings.
One 8 oz package of tempeh has around 34 grams of protein, so when you serve it over whole grain pasta, you’re looking at a seriously protein-dense meal. Unlike some vegan meat alternatives, tempeh has a short ingredient list and minimal processing.
The other key player here is sun-dried tomatoes. They add concentrated sweetness and depth that you just don’t get from fresh tomatoes or tomato paste alone. Combined with mushrooms, you get layers of umami that make this vegan tempeh spaghetti sauce taste like it simmered for hours.
Ingredients for Tempeh Bolognese
- 3/4 to 1 lb pasta of your choice (whole grain adds extra protein)
- 2 tablespoons olive oil
- 1 medium onion, chopped
- 3 garlic cloves, minced
- 1 can (6 oz) sliced mushrooms, drained, or 2 cups fresh mushrooms, sliced
- 1 package (8 oz) tempeh crumbles (or crumble a block of tempeh by hand)
- 1/2 cup sun-dried tomatoes, chopped
- Salt and pepper to taste
- 1 can (12 oz) tomato paste plus 2 3/4 cans of water (or vegetable broth)
- 1 tablespoon dried oregano (or your favorite Italian seasoning blend)
- 1 to 2 tablespoons agave nectar or sugar of choice (optional, to balance acidity)
- Vegan parmesan cheese, for serving
- Red pepper flakes, optional
Want a chunkier sauce? Add a 28 oz can of crushed tomatoes or a 14 oz can of diced tomatoes along with the tomato paste, and skip the water since the canned tomatoes provide the liquid. Want it thicker without adding tomatoes? Cut the water down to 1 to 2 cans instead of 2 3/4, or thin the sauce with reserved pasta water until you get the consistency you like.
How to Make Vegan Tempeh Bolognese Spaghetti
- Bring a large pot of salted water to a boil. Cook your pasta according to package directions.
- While the water heats up, add 2 tablespoons olive oil to a large skillet over medium heat.
- Add 1 chopped onion and saute until translucent, about 3 to 4 minutes. Season with salt and pepper as you go.
- Add the mushrooms, 1/2 cup chopped sun-dried tomatoes, and 8 oz tempeh crumbles. Cook for 3 to 4 minutes, stirring occasionally. If using fresh mushrooms, give them an extra 3 to 4 minutes to soften and brown.
- Add 3 minced garlic cloves and cook for 1 more minute until fragrant.
- Stir in 1 can (12 oz) tomato paste, 2 3/4 cans of water (or broth), 1 tablespoon oregano, and 1 to 2 tablespoons agave nectar if using. Bring to a low boil over medium-high heat, stirring so the sauce doesn’t stick.
- Reduce heat to low and let the tempeh bolognese simmer for 5 to 10 minutes so all the flavors come together.
- Drain the pasta and serve the sauce over the top. Finish with vegan parmesan and red pepper flakes.
Tips for the Best Results
- Crumble size matters. Break the tempeh into small, irregular pieces so they mimic the texture of ground meat in a traditional bolognese. Larger chunks won’t absorb as much sauce.
- Don’t skip the sweetener. A small amount of agave, maple syrup, or brown sugar balances the acidity from the tomato paste. Start with 1 tablespoon and adjust to taste.
- Let it simmer. Even 5 extra minutes of simmering on low heat makes a noticeable difference. The sauce thickens and the tempeh absorbs more flavor.
- Use fresh garlic if you can. If you don’t have fresh cloves, 1 to 1 1/2 teaspoons of garlic powder will work.
How to Store Tempeh Bolognese Sauce
- Refrigerator: Store leftover sauce in an airtight container for up to 5 days. Keep it separate from the pasta so the noodles don’t get mushy.
- Freezer: This sauce freezes well for up to 2 months. Thaw overnight in the fridge and reheat on the stove or in the microwave.
- Reheating: Add a splash of water or broth when reheating to loosen the sauce back up.
Easy Variations to Try
- No tempeh? Swap in vegan ground crumbles or crumbled extra-firm tofu.
- More veggies: Add chopped carrots, celery, or bell peppers when you saute the onions for a more traditional mirepoix base.
- Skip the sun-dried tomatoes if they aren’t your thing. The sauce holds up fine without them.
- Different sweeteners: Brown sugar, maple syrup, or organic cane sugar all work as alternatives to agave.
- Quick shortcut: Use your favorite jar of marinara instead of building the sauce from tomato paste. Just cook the tempeh and veggies, then stir in the jarred sauce.
- Serve it other ways: This sauce works just as well over brown rice, quinoa, or baked potatoes. Try it in a vegan spaghetti style or layered into a baked pasta dish.
- Extra protein: Stir in some vegan cottage cheese or nutritional yeast for a creamier, protein-boosted version. It ends up tasting a bit like a vegan lasagna.
Tempeh Bolognese FAQ
Can I use a whole block of tempeh instead of pre-made crumbles?
Yes. Just crumble a standard 8 oz block of tempeh by hand or grate it on the large holes of a box grater. The texture will be slightly different from store-bought crumbles, but it works the same way in the sauce.
Does tempeh bolognese taste like real bolognese?
It’s not identical, but it hits a lot of the same notes. The combination of umami from the tempeh, mushrooms, and sun-dried tomatoes creates a savory depth that’s reminiscent of a meat-based sauce. The texture is convincingly hearty.
Can I make this tempeh spaghetti sauce ahead of time?
Absolutely. The sauce actually tastes better after sitting in the fridge overnight because the flavors have time to meld. Make the sauce up to 3 days ahead and reheat when you’re ready to serve.
Is tempeh gluten-free?
Plain tempeh made from just soybeans is gluten-free. However, some brands add grains like barley or wheat, so always check the label. Pair it with gluten-free pasta if you need the whole meal to be gluten-free.
This tempeh bolognese takes about 30 minutes, makes enough for leftovers, and works with whatever vegetables you have around. If you’re looking for more plant-based pasta inspiration, try this Vegan Spinach Mushroom Pasta or the Cheesy Sun-Dried Tomato Mushroom Pasta.
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Tempeh Bolognese Spaghetti
Ingredients
- 3/4 lb to 1 lb of cooked pasta of your choice I used a hearty whole grain pasta
- 2 tablespoons olive oil
- 1 medium onion chopped
- 3 garlic cloves minced
- 1 6 oz can sliced mushrooms drained well or use 2 cups fresh mushrooms, sliced
- 1 8 oz package package Lightlife™ Original Tempeh Protein Crumbles
- 1/2 cup sun-dried tomatoes chopped up
- salt & pepper to taste
- 1 12 oz can tomato paste with 2 & ¾ cans of water from your tomato paste can see notes if your want chunkier
- 1 tablespoon oregano or whatever Italian spices you like
- 1 - 2 tablespoons light agave nectar or sugar of choice, optional (I like to use it cut the sourness, but it’s up to you!)
- Vegan parmesan cheese
- Optional: red pepper flakes
Instructions
- In a large pot, add water and a couple pinches of salt for the pasta. You’ll cook pasta according to instructions.
- .While the water is coming to a boil for the pasta, in a large skillet, add your olive oil and start to heat the pan over medium-high heat.
- Start by sautéing the chopped onions over medium heat until they start to get translucent. (While you are cooking, add salt and pepper to each of the ingredient additions as needed.) Add your sliced mushrooms, sun-dried tomatoes and tempeh and continue cooking for a 3-4 minutes, if using fresh mushroom, you may have to cook an extra 3 to 4 minutes. Add the minced garlic and cook for another minute with the other ingredients.
- Add the tomato paste, water, oregano and agave nectar (or sugar of choice) and combine everything together to a boil on medium-high heat, stirring mixture so it doesn't stick to the pan, then let sauce simmer on low heat for a few minutes so all the flavors incorporate together.
- Once the sauce has cooked through and is hot, drain the spaghetti and serve the sauce over the spagetti.
- Serve with vegan parmesan and red pepper flakes if desired! Enjoy this hearty meal!