01 -
Preheat oven to 375°F (190°C).
02 -
Thinly slice the baby bella mushrooms and shallots.
03 -
Heat canola oil in a medium pan over medium heat. Add mushrooms and shallots, season with a pinch of salt and black pepper, and sauté until mushrooms are just cooked. Drain off excess mushroom juices.
04 -
In a medium bowl, combine sour cream, heavy whipping cream, garlic powder, remaining salt, and black pepper. Mix thoroughly.
05 -
Pour the cream mixture over the sautéed mushrooms and shallots. Stir well and heat just until warmed through.
06 -
Transfer the mushroom mixture to a baking dish. Evenly sprinkle mozzarella cheese across the top. Bake for 10 to 15 minutes, or until cheese is melted and golden.