High-Protein Vegan Carbonara (44g Protein, Creamy & Low-Cal)

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This vegan carbonara is everything the Roman classic is — silky, smoky, deeply savory — with 44 grams of protein and 36 grams of fiber per serving, all under 450 calories. Smoky-marinated OOE soy chunks stand in for the crispy pancetta, a blended silken-tofu sauce goes glossy and creamy just like the egg emulsion, and a pinch of kala namak brings that unmistakable eggy backbone. It comes together in about 35 minutes and makes four generous bowls — dinner tonight, lunch tomorrow, sorted.

Here’s the honest truth: carbonara was the one dish I was sure I couldn’t veganize. The whole point is eggs, cured pork, and hard cheese — take those away and what’s left? So I stopped trying to fake all three and rebuilt the feeling instead: smoky chunks for the fatty, salty bite of guanciale, silken tofu for that clingy, creamy sauce, and black salt for the egg.

Why you’ll love this carbonara

• 44g of protein per serving — the OOE soy chunks do the heavy lifting (about 30g of the total), so this eats like a real, filling dinner, not a sad “lightened-up” pasta.
• 36g of fiber per serving — between the Carbe Diem pasta and the soy chunks, this is one of the most filling bowls of pasta you’ll ever eat. You will not be raiding the fridge at 9pm.
• Under 450 calories — a genuinely macro-friendly carbonara you can eat on a Tuesday, no “treat day” required.
• Made with OOE soy chunks — my Only One Earth soy chunks crisp up smoky and pancetta-like and add real, complete plant protein (PDCAAS 0.94) with fiber. Name another carbonara topping that can say that.
• No eggs, no cream, no dairy — the silken-tofu sauce is creamy and clingy, and kala namak (black salt) gives it that eggy, sulfur-y depth carbonara is famous for.
• Meal-prep friendly — it holds up beautifully for next-day lunches, and the smoky chunks only get better overnight.

Ingredient notes (the ones that matter)

• OOE soy chunks (the smoky “pancetta”). These are my Only One Earth soy chunks — rehydrated, marinated in a tamari-agave-smoke glaze, and pan-crisped until the edges caramelize. At 50g dry per serving they bring about 30g of protein (marinade included) for a fraction of the fat of cured pork, and they’re a complete protein with real fiber. Squeeze them dry after soaking — drier chunks crisp far better.
• Silken tofu (the sauce). This is the whole trick. Blended smooth with miso, nutritional yeast, and lemon, silken tofu turns into a glossy, creamy sauce that clings to the pasta exactly like the classic egg-and-cheese emulsion — no cream, barely any fat. Use silken, not firm; firm tofu won’t blend as silky.
• Kala namak (black salt). The eggy secret. This sulfur-rich Himalayan salt tastes uncannily like cooked egg yolk and is what makes people do a double-take. It’s optional, but it’s what pushes this from “creamy tofu pasta” into proper carbonara territory. Find it at Indian grocers or online.
• Carbe Diem pasta. A low-net-carb, high-fiber pasta (110 cal, 8g protein, and a wild 24g fiber per 2 oz) that’s doing a lot of work on these macros. Any pasta works — whole wheat or protein pasta are great — but Carbe Diem is why the calories stay low and the fiber goes (this is not sponsored, I wish!).
• Yellow squash & onion. Diced squash bulks out the bowl with barely any calories, and sautéed onion — blended right into the sauce — adds a sweet, savory depth that makes it taste slow-cooked. You almost can’t tell!

How to make vegan carbonara

1. Soak the chunks. Cover the OOE soy chunks with hot broth, soak 8–10 minutes until plump, then drain and squeeze them dry. Drier chunks crisp better.
2. Marinate. Toss the squeezed chunks in tamari, agave, liquid smoke, smoked paprika, garlic powder, and onion powder. Overnight if you have time, if not let them sit and drink it up while you prep everything else.
3. Crisp the chunks. Air fry in 1 tbsp oil at 400F, for 10-15 minutes, turning, until the edges caramelize and go smoky-crisp. Set aside.

4. Sauté the aromatics. Soften the diced onion in 1 tbsp oil until golden, 4–5 minutes, adding the garlic for the last minute.
5. Blend the sauce. Blend the silken tofu, nutritional yeast, lemon juice, salt, miso, kala namak, turmeric — and the sautéed onion — until completely smooth and glossy.
6. Cook the pasta. Boil to package directions and reserve ½ cup pasta water before draining.
7. Bring it together.  Add the crispy soy chunks and deglaze with some of the marinade you saved. Pour the carbonara sauce at LOW heat (never boil the sauce — silken tofu can split), add the pasta and squash through the carbonara sauce, loosening with the reserved pasta water a splash at a time until it coats everything silkily. Cook for about 10 min.

8. Finish with cracked black pepper, vegan parmesan and chile flakes. Enjoy!

Substitutions & swaps

• Pasta swap: any pasta works. Whole wheat or protein pasta keeps it high-protein; regular pasta is fine but adds ~90 cal per serving and drops the fiber a lot. Carbe Diem is what keeps this both low-cal and high fiber.
• Nut-free / soy note: this is naturally nut-free. It does contain soy (chunks, tofu, tamari, miso).
• Gluten-free: use a GF pasta or rice noodles and tamari.
• No kala namak? Regular salt works — you lose the eggy note but it’s still creamy and delicious.
• Protein swap: no soy chunks on hand? Soy curls work, but the OOE chunks hold their shape and crisp best as the “pancetta.”
• Want it richer? Stir 1 tbsp vegan butter into the finished pasta (+~25 cal per serving) for extra silkiness — still under 500.

Pro tips for the creamiest carbonara

• Keep the sauce off high heat. Cook at low heat so the tofu doesn’t split.
• Pasta water. That starchy splash is what loosens the thick tofu sauce into a glossy, clingy carbonara texture. Add it gradually.
• Blend the onion in. Sautéing the onion first and blending it into the sauce is the move — it adds a sweet, savory depth that tastes like it simmered for hours.
• Caramelize the chunks properly. That smoky, crisp edge is where the “pancetta” flavor lives — give them the full 10-15 min.

Storage & meal prep

Vegan carbonara keeps in the fridge for up to 4 days and honestly makes a killer next-day lunch — the smoky chunks deepen overnight. Reheat gently on the stovetop or in the microwave with a splash of water or plant milk to loosen the sauce back up (it thickens as it sits). The marinated chunks can be crisped ahead and stored separately if you like your pasta freshly sauced.

I prefer to keep the sauce aside and put together before eating if you have more time.

What to serve with vegan carbonara

It’s a complete high-protein meal on its own, but a big peppery arugula salad with lemon cuts the richness perfectly, and garlicky greens on the side never hurt. If you’re building out a high-protein plant-based rotation, this slots right in next to my vegan chicken alfredo, vegan teriyaki soy chunk bowl, and high-protein vegan butter chicken.