Plant-Based Protein Swaps: Tofu, Tempeh, Seitan, TVP and Legumes by Use

Plant proteins are not interchangeable stand-ins for “meat”. Each has a texture that suits some dishes and ruins others, and each carries a different amount of water, which is what mostly decides how much protein a portion delivers. Choosing by use first, then adjusting the portion, gives better food than swapping gram for gram.

Protein per 100 g, and why water explains it

USDA FoodData Central lists these values per 100 g as eaten:

Food	Protein	Water
Silken tofu, soft	4.8 g	89.0 g
Regular soft tofu	7.2 g	87.3 g
Firm tofu (nigari)	9.0 g	82.9 g
Extra-firm tofu (nigari)	10.0 g	82.3 g
Firm tofu (calcium sulfate)	17.3 g	69.8 g
Tempeh	20.3 g	59.6 g
Edamame, cooked	11.9 g	72.8 g
Lentils, boiled	9.0 g	69.6 g
Chickpeas, boiled	8.9 g	60.2 g
Black beans, boiled	8.9 g	65.7 g
Ground beef 85% lean, browned	27.7 g	55.9 g
Chicken breast, roasted	31.0 g	65.3 g

Within tofu, protein rises as water falls: the firmer the block, the more soy solids per bite. The two “firm” entries differ by nearly double, so the word on the package is not a measurement; the Nutrition Facts panel is. Tempeh, made from whole fermented soybeans rather than soy milk, holds about twice the protein of most tofu.

The portion arithmetic follows. Matching the 31 g of protein in 100 g of roasted chicken breast takes about 155 g of tempeh, 310 g of extra-firm tofu or 345 g of cooked lentils. Recipes that swap 1:1 by weight turn out filling but lower in protein, which matters only if protein is the goal.

Seitan and TVP are sold dry or nearly so and change with cooking. USDA lists vital wheat gluten, the flour seitan is made from, at 75.2 g of protein per 100 g dry; kneading it with water and simmering it dilutes that figure, by an amount that depends on the recipe.

Which protein for which dish

The dish needs	Best choice	Why
Ground meat in chili, tacos, bolognese	TVP, lentils or crumbled tempeh	Small pieces that hold their shape in sauce
Chicken pieces in a stir-fry	Pressed extra-firm tofu or seitan	Tofu browns and stays tender; seitan gives chew
Cutlets, strips or slices to sear	Seitan or tempeh	Dense enough to slice thin without crumbling
Paneer in curry	Pressed, browned extra-firm tofu	Holds cubes in a simmering sauce
Scrambled eggs	Firm or soft tofu, crumbled	Soft curds once heated
Cream or ricotta in a filling or sauce	Silken tofu, or tofu ricotta	Blends smooth with no grain
Burgers and meatballs	Mashed beans or lentils with a binder	Starch from the legumes helps the mixture hold
Whole beans in salads	Chickpeas, edamame	Firm skins keep them intact when dressed

The tempeh guide gives weights for swapping tofu, seitan and legumes into tempeh recipes. The paneer guide and ricotta guide cover the tofu versions of those cheeses, and the egg guide uses ¼ cup of puréed silken tofu per egg in baking.

Prep that makes each one work

Tofu. Press firm and extra-firm blocks for 20 to 30 minutes so they brown rather than steam. Freezing and thawing a block first opens its texture into a spongier, chewier grain that soaks up marinade. Brown cubes in the pan before they meet a sauce; raw tofu stirred into a simmering curry breaks up and waters the gravy down. Silken tofu is not pressed: it is blended or spooned.

Tempeh. It slices cleanly and browns well, but some blocks taste slightly bitter. A 10-minute simmer or steam before marinating softens that edge and helps it absorb flavor; this is a common step in tempeh recipes, not a rule.

Seitan. Its surface takes marinade but the inside stays plain, so slice before marinating and sear the pieces hard. Overcooking in liquid makes it spongy.

TVP. Bob’s Red Mill’s package method is ¾ cup plus 2 tbsp boiling water or broth per cup of TVP, left to stand 5 to 10 minutes. The company notes it is bland on its own, so broth or a soy-sauce-seasoned liquid does more than water. Brown the rehydrated crumbles in oil before adding sauce for a meatier texture.

Lentils and beans. For a crumble that mimics ground meat, use brown or green lentils and add cooked ones near the end of simmering so they keep their shape. For burgers, mash part of the beans and leave the rest whole, as the black beans guide suggests for lentil patties, and chill the mixture before shaping.

Allergens in plant proteins

Tofu, tempeh, edamame, TVP and most meat analogs are soy, one of the nine US major allergens. Seitan is wheat gluten and unsafe for anyone with celiac disease or a wheat allergy. Chickpeas and lentils are outside the nine, though anyone with a legume allergy should follow their allergist’s advice. For cooking around several allergens at once, see converting recipes for allergies.

Common mistakes

• Frying unpressed tofu. Water floods the pan, the tofu steams and the coating turns soggy.
• Buying silken tofu for a stir-fry. It is too soft to hold cubes and collapses when stirred.
• Swapping tofu for chicken gram for gram and expecting the same protein. Most firm tofu carries under a third of the protein in the same weight of roasted chicken breast.
• Rehydrating TVP in plain water and stopping there. It stays bland; broth and a browning step give it flavor.
• Marinating a whole block of seitan. Only the surface takes flavor, so the center tastes of plain dough.
• Simmering lentils in a sauce from the start. They break down into mush and thicken the sauce more than intended.