1/2 to 2poundsmushrooms(Read the section titled "What is the best ratio for blended burgers" in the blog post and see note below)
1Tablespooncanola oil
1smallonionminced
1poundlean ground beef
1teaspoonseasoning salt or other seasoning mix(or 1/2 teaspoon each salt and pepper)
For the hamburgers (all optional - dress your burger to taste)
4hamburger bunsuse gluten-free buns for gluten-free burgers
cheeseskip for dairy-free burgers
pickles
ketchup, mustard, relish, mayo, etc.
sliced onions, lettuce, and tomato
Instructions
Gently wipe any dirt off the mushrooms with a damp paper towel. Break the mushrooms into pieces and place into the bowl of a food processor. Pulse mushrooms, scraping down the sides and stirring as needed until they are minced fine (avoid over processing to the point that they become a paste).
Heat the oil in a large skillet over medium-high heat. Add the minced onion and mushrooms, stirring occasionally. Cook until the mushrooms have released all their moisture, and the mixture becomes browned, dry, and crumbly (it will resemble cooked ground beef - see photo), about 10-15 minutes. Set aside to cool.
Mix the cooked mushroom mixture into the ground beef until the two are incorporated. Form into 4 hamburger patties. Season each of the patties evenly on both sides with seasoning or salt and pepper.
Cook burgers fully with your favorite burger cooking method (they can be grilled, or cooked on a griddle or skillet) until they are fully cooked (the center of the burger should read 160°F on an instant read thermometer).
Notes
Use half a pound of mushrooms for a minimal mushroom flavor and no discernible texture change, or up to 2 pounds of mushrooms for a stronger mushroom flavor.Either white or brown (cremini) mushrooms here. In general, white mushrooms will provide the more subtle flavor, while brown or cremini mushrooms will be a little more flavorful. You can also use a mix of the two.