Preheat oven to 375 degrees F. Remove and chop mushroom stems and set aside. Clean gills from each mushroom and discard. Brush the inside and outside of each mushroom with olive oil and season each with salt and pepper. Place mushrooms, stem side down, on a sheet pan and bake for 6 to 8 minutes.
Place spinach and 1 Tbsp. of water in a microwave safe bowl and microwave for 1 minute. Strain spinach and place in a clean cotton towel. Carefully squeeze out remaining moisture. Chop fine.
Combine spinach, chopped mushroom pieces, breadcrumbs, sausage, scallions, cheese, ¼ tsp. black pepper and Jimmy’s Ranch Dip in a bowl and mix well.
Invert mushroom caps, divide filling into 6 portions and fill each mushroom. Sprinkle each cap with parmesan cheese and bake 10 to 12 minutes.
Serving Size 6
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.