Best Substitutes for Kale
Kale brings three things to a dish: sturdy texture that holds up to heat, a slightly bitter edge that balances rich ingredients, and bulk that doesn't disappear when cooked. Raw kale needs massaging with salt or acid to break down its tough fibers. Cooked kale takes 5-7 minutes to soften properly. Most leafy greens cook faster and release more water than kale, so timing adjustments matter.
The best substitutes depend on cooking method. Raw applications need hardy greens that won't wilt from dressing. Soups and stews need greens that maintain some structure after 20+ minutes of simmering. Quick sautes work with almost any green if you adjust the timing.
Best Overall Substitute
Collard greens at a 1:1 ratio. They match kale's sturdiness and cooking time almost exactly. The leaves hold up to long cooking, maintain pleasant texture, and have a similar mild bitterness. Remove thick stems and slice leaves into 1/2-inch ribbons.
All Substitutes
Spinach
1:1 by volume, packedSpinach wilts to about 1/4 its raw volume (vs kale's 1/2). It cooks in 30-60 seconds compared to kale's 5-7 minutes. Skip the massaging step for raw preparations. Add spinach in the last 2 minutes of cooking for hot dishes. The flavor is milder and slightly sweeter than kale's earthy bitterness.
Swiss chard
1:1 by volumeChard stems need 3-4 minutes to cook, leaves need 2-3 minutes. Separate and cook stems first. The leaves have a mineral, slightly salty flavor compared to kale's bitterness. Rainbow chard adds color but tastes identical to green. Chard releases more water than kale, so increase heat for sautes.
Collard greens
1:1 by volumeCollards are kale's closest match in texture and cooking time. They need 6-8 minutes to tender. The leaves are broader and flatter, making them easier to clean. Flavor is mild with less bitterness than kale. Stack leaves, roll tightly, and slice into ribbons for even cooking.
Mustard greens
3/4:1 by volumeMustard greens pack more heat than kale's mild bitterness. Use 3/4 cup mustard greens per 1 cup kale. They cook in 3-4 minutes and maintain good texture. The spicy bite mellows with cooking but never fully disappears. Young leaves work raw if you like heat.
Cabbage
1.5:1 by volumeShredded cabbage provides crunch and bulk. Use 1.5 cups thinly sliced cabbage per 1 cup kale since it doesn't reduce as much. Green cabbage takes 4-5 minutes to soften while maintaining texture. The flavor is sweeter and less complex than kale. Napa cabbage works for Asian dishes.
Arugula
2:1 by volumeArugula wilts instantly and has a peppery bite instead of bitterness. Use 2 cups arugula per 1 cup kale to account for wilting. Add it off heat or in the last 30 seconds of cooking. Baby arugula is milder than mature leaves. Works best raw or barely wilted.
Bok choy
1:1 by volumeSeparate white stems from green leaves. Stems need 3-4 minutes, leaves need 1-2 minutes. The flavor is mild and slightly sweet with a juicy crunch. Baby bok choy works whole. Regular bok choy should be chopped into 1-inch pieces. Higher water content than kale.
Broccoli rabe
3/4:1 by volumeBroccoli rabe brings aggressive bitterness compared to kale's mild edge. Blanch for 2 minutes before using to tame bitterness. Use 3/4 cup per 1 cup kale. Stems, leaves, and florets all cook in 3-4 minutes after blanching. Pairs well with garlic, chili, and strong flavors.
How to Adjust Your Recipe
Cooking time is the biggest adjustment. Kale takes 5-7 minutes to become tender. Spinach wilts in 30 seconds. Collards match kale's timing. Everything else falls between.
For soups and stews, add delicate greens (spinach, arugula) when you turn off the heat. Add medium greens (chard, mustard) in the last 3-5 minutes. Hardy greens (collards, cabbage) can simmer for 20+ minutes like kale.
Raw preparations need different handling. Kale requires 2-3 minutes of massaging with salt or lemon juice. Skip this for tender greens. Thinly slice hardy greens like collards or cabbage instead of massaging.
Adjust liquid in recipes. Spinach and chard release significant water. Increase heat or reduce other liquids by 2-3 tablespoons per cup of greens.
When Not to Substitute
Kale chips need kale specifically. The thick leaves crisp at 300F without burning. Thinner greens burn before crisping. Massaged kale salads that sit for hours need kale's sturdy structure. Other greens turn to mush.
Some traditional recipes depend on kale's exact cooking time and texture. Portuguese caldo verde and Italian ribollita lose authenticity with substitutes. Smoothie recipes balanced for kale's mild bitterness might taste wrong with peppery or bitter alternatives.
Frequently Asked Questions
Can I use frozen spinach instead of fresh kale?
Yes, but the conversion is tricky. One 10-ounce package of frozen spinach (thawed and squeezed dry) replaces about 2 cups of fresh kale. Frozen spinach is already cooked, so add it in the last 2 minutes just to heat through. The texture is softer and it releases more liquid than fresh kale. Works best in soups, stews, and baked dishes where texture matters less.
What's the best kale substitute for smoothies?
Baby spinach at a 1:1 ratio. It blends smoother than kale and has a milder flavor that disappears behind fruit. Use 1 packed cup of baby spinach per 1 cup of kale. Swiss chard leaves (stems removed) work at the same ratio but add a slightly earthy taste. Both options provide similar nutrition without kale's fibrous texture that some blenders struggle with.
How do I substitute kale in a soup that cooks for 30 minutes?
Use collard greens or cabbage at a 1:1 ratio from the start. They withstand long cooking like kale. For spinach or chard, add them in the last 3-5 minutes only. Mustard greens work if added in the last 10 minutes. Adding delicate greens too early turns them to mush and makes soup murky. Hearty greens maintain texture through the full cooking time.