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Three white dishes filled with hearty Vegetarian Mushroom Meatloaf, topped with tomato sauce, sit on a wooden surface next to a patterned napkin and four forks.
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5 from 3 votes

Vegetarian Mushroom Meatloaf

This Vegetarian Mushroom Meatloaf is a hearty, meatless main dish made with baby bella mushrooms, walnuts, oats and wild rice, seasoned with sage, thyme and rosemary. It's finished with a classic sweet and tangy meatloaf glaze. Bake it in a loaf pan or individual ramekins.
Prep Time30 minutes
Cook Time40 minutes
Total Time1 hour 10 minutes
Course: Main Course
Cuisine: American
Diet: Vegetarian
Servings: 8
Author: Reed Dunn

Ingredients

  • 2 tablespoons olive oil
  • ½ yellow onion diced
  • 3 stalks celery diced small
  • 2 cloves garlic minced
  • 12 ounces baby bella mushrooms
  • 1 cup rolled oats
  • 1 cup walnuts
  • ¼ cup tomato paste
  • 1 tablespoon Worcestershire sauce check label for vegetarian
  • 2 teaspoons fresh thyme chopped
  • 2 teaspoons fresh rosemary chopped
  • 1 tablespoon fresh sage chopped
  • 1½ teaspoons kosher salt
  • 1 teaspoon black pepper
  • ½ cup potato flakes
  • 1 cup hot water
  • 2 eggs
  • 2 cups cooked wild rice

For the glaze

  • ½ cup ketchup
  • 2 tablespoons yellow mustard
  • ¼ cup brown sugar
  • 1 teaspoon apple cider vinegar
  • ¼ teaspoon kosher salt

Instructions

  • Preheat oven to 375 degrees F. Lightly spray 4 10-ounce ramekins or 1 9-inch x 5-inch loaf pan with cooking spray.
  • Cut 12 ounces baby bella mushrooms in half and add to the bowl of a food processor fitted with an S-blade. Secure lid and pulse 10 to 15 times until mushrooms are evenly chopped into small pieces. Transfer to a bowl and set aside.
  • Add 1 cup rolled oats and 1 cup walnuts to the food processor. Secure lid and pulse 15 to 20 times, until walnuts are ground and oats are chopped into a chunky flour consistency.
  • Heat 2 tablespoons olive oil in a large skillet over medium-high heat. Once heated, add diced onion and celery, cooking for 5 to 7 minutes, until onions are translucent. Reduce heat to medium and add minced garlic and chopped mushrooms to the skillet. Continue cooking an additional 8 to 10 minutes, until liquid from mushrooms is cooked out.
  • Season mixture with thyme, rosemary, sage, salt and pepper. Stir in tomato paste and Worcestershire sauce, cooking for another 1 to 2 minutes. Remove from heat.
  • In a small bowl, add ½ cup potato flakes and 1 cup hot water. Stir to combine and let sit for a few minutes to absorb liquid.
  • Whisk eggs in a large bowl. Add in ground walnut and oat mixture, along with cooked mushroom, onion and celery mixture. Fold to combine, adding in potatoes and cooked wild rice, until everything is evenly incorporated.
  • Divide the mixture into prepared ramekins or press into prepared loaf pan.
  • Make the glaze by adding ½ cup ketchup, 2 tablespoons yellow mustard, ¼ cup brown sugar, 1 teaspoon apple cider vinegar and ¼ teaspoon kosher salt into a small bowl. Whisk together until combined.
  • Brush the glaze on top of the Meatless Mushroom Loaf(s) and place on the middle rack of a preheated oven for 40 minutes, or until center is cooked to 165 degrees F and glazed top is set.
  • Let cool 10 minutes and serve with your favorite sides.

Notes

  • If you're making this vegetarian, be sure to check the label of your Worcestershire sauce. Some brands include anchovies.
  • This recipe makes one 9-inch by 5-inch loaf, or 4 individual loaves in 10-ounce ramekins.