Ingredients

• 8 large portobello mushrooms, stems removed
• 1 tablespoon vegetable oil, or more as needed
• salt and ground black pepper to taste
• 1 pound ground beef
• 1 pound chorizo sausage
• 1/2 onion, diced
• 4 slices cooked bacon, chopped
• 1 egg
• 2 cloves garlic, minced
• 1/4 cup chopped fresh cilantro
• 1/2 teaspoon salt
• 1/2 teaspoon ground black pepper
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/2 teaspoon chili powder

Instructions

1. Preheat oven to 375 degrees F (190 degrees C).
2. Scrape the gills out of each mushroom. Brush olive oil over each mushroom (top and bottom) and season with salt and pepper. Arrange mushrooms, gill-side up, on a baking sheet.
3. Bake in the preheated oven until tender, about 7 minutes.
4. Combine ground beef, chorizo, onion, bacon, egg, garlic, cilantro, 1/2 teaspoon salt, 1/2 teaspoon black pepper, garlic powder, onion powder, and chili powder in a large bowl just until mixed; shape into 8 patties. Place a patty on top of each mushroom.
5. Bake in the preheated oven until burgers are fully cooked, about 20 minutes. An instant-read thermometer inserted into the center should read at least 160 degrees F (70 degrees C).