That deep, smoky bite from a grilled portobello cap is hard to fake. But the right swap can get surprisingly close, especially when you match the substitute to your actual cooking method.
Portobello mushroom substitute searches usually spike when someone is mid-recipe and suddenly out of stock. The good news: portobellos do three main jobs (moisture release, browning, and savory depth), and several ingredients cover at least two of those three well.
The best substitute depends entirely on whether you're grilling, sautéing, or baking. A swap that shines on the grill may turn watery in a casserole.
We tested five options across all three methods so you know exactly which one to reach for.
Portobello mushrooms bring meaty texture, moisture, and umami to dishes. For most recipes, cremini mushrooms are the fastest swap. For grilling or "steak" style, use king oyster mushrooms sliced thick. For baking without mushrooms, try eggplant salted and dried, or canned hearts of palm.
5 Best Portobello Mushroom Substitutes for Cooking and Baking
Scan the table below by method first, then read the full section for the swap you need. The ratio column assumes you're replacing by volume or piece count, not weight.
| # | Substitute | Best For | Ratio | Key Note |
|---|---|---|---|---|
| 1 | Cremini mushrooms | Both | 1:1 | Slice ¼ in thick |
| 2 | Shiitake mushrooms | Cooking | 1:1 | Remove stems first |
| 3 | King oyster mushrooms | Grilling | 1:1 | Thick slices only |
| 4 | Eggplant | Both | 1:1 | Salt and pat dry |
| 5 | Hearts of palm | Baking | ¾:1 | Drain and dry well |
1. Cremini Mushrooms
Cremini is the everyday portobello, just younger and smaller. It carries the same earthy, savory base flavor that understanding earthy mushroom profiles helps you appreciate, and it browns reliably without much fuss.
Use cremini anywhere the recipe calls for sliced or chopped portobello, including pasta sauce, stir-fries, and baked casseroles.
- Slice thickness: Cut to ¼ in so moisture reduces at the same rate as portobello would.
- Heat level: Medium-high works well; crowding the pan stalls browning, so cook in batches.
- Flavor boost: A small splash of soy sauce in the last 60 seconds deepens the savory note.
- Volume note: Cremini shrinks more than portobello, so start with 25% more by volume.
Skip if: you need a single large cap for a burger-style presentation. In that case, king oyster or eggplant is the better shape match.
2. Shiitake Mushrooms
Shiitake has a distinctive woodsy intensity. That bold, smoky depth is what makes it so effective in dishes where portobello is supposed to carry the savory weight.
Pull the stems before slicing since they stay tough even after long cooking.
- Stem removal: Twist stems off cleanly; save them for stock if you like.
- Heat control: Use medium heat instead of high to slow moisture loss and avoid a leathery texture.
- Slice size: Cut caps into ⅓ in slices for chew that reads like portobello in a sauce or braise.
- Pairing tip: Shiitake pairs especially well with soy, ginger, and miso-based sauces.
If you ever need to go in the other direction, swapping out shiitake follows a similar logic in reverse.
Skip if: your dish has a mild, delicate flavor profile. Shiitake can easily take over a cream-based sauce or light broth.
3. King Oyster Mushrooms
King Oyster (thick-sliced)
Works for: grilled "steaks," vegan sandwiches, seared entrée portions
Skip if: you need thin, delicate slices that cook fast and stay tender
Portobello (whole cap)
Works for: burger-style presentation, whole stuffed caps, any large-format dish
Skip if: you need shelf-stable or year-round reliable texture without cap size variation
King oyster mushrooms are the most structurally similar to portobello when sliced thick. Their stems are dense and hold shape under high heat, which makes them the go-to for anything where the firm, meaty character of the mushroom is the point.
Sear them hard on both sides before backing off the heat.
- Slice thickness: Cut lengthwise into ¾ in planks for the best cap-steak result.
- Sear method: Cast iron or stainless on high heat; press gently to maximize contact.
- Finish step: After searing both sides, reduce heat and cover loosely for 2 minutes to cook the interior without drying it out.
- Seasoning: Salt immediately before serving, not before cooking, to avoid moisture draw-out.
Skip if: your recipe calls for finely chopped mushrooms in a sauce or filling. King oyster is wasted there; cremini works better.
4. Eggplant
Eggplant is the best non-mushroom option for grilling and baking, mainly because its flesh absorbs marinade and develops char in a way that reads as satisfyingly meaty. The flavor shifts noticeably, which you should consider upfront.
But for people avoiding mushrooms entirely, thick-cut eggplant brushed with olive oil and a bit of balsamic gets surprisingly close to that savory, caramelized bite.
- Slice thickness: Cut crosswise into ¾ in rounds for grilling; ½ in for baking.
- Salt step: Sprinkle salt on both sides, rest 15 minutes, then press firmly with a kitchen towel.
- Cook time: Grill 4-5 minutes per side on medium-high; bake at 400°F for 20-25 minutes, flipping once.
- Flavor bridge: Add 1 teaspoon balsamic vinegar to any marinade to pull the flavor closer to portobello's natural depth.
Skip if: your dish is mushroom-forward and the eggplant flavor will register as out of place. Think mushroom risotto or a mushroom-based gravy.
5. Canned Hearts of Palm
Hearts of palm is the pantry option. It is mild, slightly fibrous, and takes on surrounding flavors readily, which makes it more useful in baked dishes and casseroles than in anything seared or grilled.
Drain the can fully and press the pieces between paper towels before using. Because its own flavor is quiet, you need to season it harder than you would a mushroom.
A light coat of soy sauce (or a savory soy-style swap) plus a pinch of smoked paprika does the job.
If you ever find yourself needing to go beyond hearts of palm, there are more palm-based alternatives worth knowing for plant-based cooking.
- Drain and dry: Press firmly to remove canned liquid or the result will steam instead of bake.
- Seasoning base: Toss with soy sauce, olive oil, garlic powder, and smoked paprika before baking.
- Bake temp: 375°F for 18-20 minutes; they don't need a flip if spaced well on the pan.
Skip if: you need a chewy, toothsome bite like portobello offers. Hearts of palm softens quickly and won't hold up to aggressive high-heat cooking.
Making Any Portobello Substitute Taste Right
The core principle is simple: match the moisture behavior and build the savory note through seasoning. Portobellos release and then reabsorb a lot of liquid as they cook, which is part of why they taste so full and round.
When you pick a wetter substitute like eggplant or hearts of palm, reducing the added liquid in your recipe by about 2 tablespoons prevents a watery final dish. For a lighter swap like cremini, just cook a little longer and make sure the pan isn't crowded.
Knowing how these dense caps store and age also helps you plan better so you're less likely to run out mid-recipe.
- Choose by structure first: If shape matters (burger, steak), pick king oyster or eggplant. If flavor matters more, pick cremini or shiitake.
- Prep for dryness: Pat every substitute dry before cooking; excess surface moisture is the enemy of browning.
- Season with umami in mind: A small splash of soy sauce or a teaspoon of balsamic vinegar added near the end of cooking closes the flavor gap for almost any substitute.
Frequently Asked Questions
Yes. Cremini or shiitake work 1:1 in pasta sauce. Add 25% more volume since both shrink slightly more than portobello during cooking.
King oyster mushrooms sliced thick and seared on high heat are the closest match. Eggplant is the best non-mushroom option for that same grilled, meaty result.
Generally yes. Shiitake caps are thinner and dry out faster, so use medium heat and check them 2-3 minutes earlier than you would portobello.
Salt slices for 15 minutes, then press firmly with a kitchen towel to remove all surface moisture before baking. Skipping this step leads to steaming instead of browning.
They work well in baked casseroles when drained and seasoned aggressively. Don't expect a chewy bite; hearts of palm softens during baking and suits dishes where texture is secondary.
5 Best Portobello Mushroom Substitutes (Tested Swaps)
Ingredients
Equipment
Method
- Match your dish goal: sear/grill for burgers uses king oyster or eggplant; sauté/sauce uses cremini or shiitake; baking uses cremini or hearts of palm.
- Prep for texture: slice ¼ in for mushrooms, slice eggplant thick and salt 15 minutes, or pat canned hearts of palm very dry.
- Swap using the listed ratio; if your substitute is wetter (eggplant or canned), reduce added liquid in the recipe.
- Adjust flavor: add a pinch of salt and a small splash of soy sauce or balsamic to bring umami closer to portobellos.
- Cook until the substitute browns: look for deep edges and reduced moisture, not just “tender.”
Notes
- Portobellos are prized for their meaty bite and savory depth—your swap should either match chew (king oyster) or deliver umami (shiitake/cremini).
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Carrie is a food writer and editor with more than 15 years of experience. She has worked for some of the biggest names in the food industry, including Bon Appétit, Food & Wine, and Martha Stewart Living.
As the Editor in Chief of EpicureDelight, Carrie oversees all of the content on the site. She also manages the team of contributing writers and editors, who help to create delicious recipes, helpful tips, and informative articles that you’ll find on the site.
A native of the Chicago area, Carrie is passionate about all things food. She loves trying new restaurants and experimenting with new recipes in her kitchen. She’s also a graduate of the Culinary Institute of America, so she knows a thing or two about food!
