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Grilled King Oyster Mushrooms With Lemon Pesto Polenta [Vegan]
Grilled Oyster mushroom steaks sits atop a bed of lemony pesto polenta in this creative dish. The "steaks" are plump and juicy and the roasted tomatoes and dash of balsamic vinegar bring the whole dish together. Delicious!
Ingredients You Need for Grilled King Oyster Mushrooms With Lemon Pesto Polenta [Vegan]
How to Prepare Grilled King Oyster Mushrooms With Lemon Pesto Polenta [Vegan]
To Make the Mushrooms:
- Whisk together marinade ingredients in a small bowl or measuring cup. Place the sliced mushrooms in a large plastic bag and pour in the marinade. Refrigerate for 20-30 minutes.
- Heat a cast iron grill pan over medium-high heat. Cook the mushroom slices about 2 minutes on the first side, and 1 minute on the 2nd side for nice grill marks. Remove immediately.
To Make the Roasted Tomatoes:
- Heat oven to 425°F. Place tomatoes on an aluminum foil-lined sheet pan and drizzle with oil. Sprinkle with salt and roast for about 25 minutes.
- If you choose to use Campari tomatoes, you want them to remove them from the oven just as they start to look exhausted and wilted, and a little wrinkled, but still juicy. For whole cherry or grape tomatoes, remove from the oven as soon as some start to burst open.
To Make the Lemon Pesto Polenta:
- Purée together first 5 ingredients in a blender or small food processor. Set aside.
- Bring broth and olive oil to a boil in a medium saucepan. Reduce heat to low and whisk or stir in the polenta.
- As soon as polenta is dissolved, quickly add the basil purée.
- 3 minutes after adding the polenta, remove from heat. Stir in pine nuts and vegan Parmesan. Season with salt and pepper if needed. Serve immediately.


I found King Oyster mushrooms at the farmer’s market, but the recipe works great with big portobello caps also. Just remove the stem and scrape out the gills before marinating and grill the whole caps to keep the juices in, slicing after they are cooked.
Where do you buy this big mushrooms? I can’t even get Whole Wheat buns in the shops.
Brittany