Finely dice the stems that you removed from the baby bella mushrooms.
Heat oil over medium heat in a small nonstick skillet. Add onion, chopped mushrooms stems, and garlic. Cook until mushrooms are tender and have begun to shrink and onion and garlic are fragrant and translucent. Stir in a generous sprinkle of the Spice of Life seasoning, to taste.
Remove from heat. Mix with Zoë’s Pimento Cheese in a small bowl.
Place mushroom caps in a baking dish stem side up 1 to 2 inches apart. Stuff each cap with an even amount of the pimento cheese mixture.
Bake for 5 to 8 minutes, until heated through and mushrooms are tender and cheese is beginning to melt. Let cool slightly and transfer to a serving tray. Garnish with chopped parsley. Enjoy!