Vegan Jalapeno Poppers

Preheat the oven to 375 degrees F (190 degrees C). Set jalapeño halves on a baking sheet lined with aluminum foil, open side up.

Heat vegetable oil in a skillet over medium-high heat. Add mushrooms, onion, and garlic to the skillet and saute until vegetables are tender and mushrooms have released their liquid, about 8 minutes. Transfer vegetables to a paper towel-lined plate to soak up the excess moisture.

Mix mushroom mixture, cream cheese substitute, 3/4 cup shredded cheese substitute, salt, and pepper together in a bowl. Spoon into the jalapeño pepper halves on the baking sheet.

Bake in the preheated oven for 20 minutes.

Remove from the oven and top with the remaining 1/4 shredded cheese substitute. Broil until the cheese is melted and slightly browned, 1 to 2 minutes.