Start by preheating your grill. Aim for medium-high heat. If you’re using a charcoal grill, light the charcoal and let it ash over. If it's a gas grill, set it to preheat while you prepare the mushrooms.

Carefully clean the portobello mushrooms. Use a damp paper towel to wipe off any dirt. Remove the stems, as they can be tough. Set the cleaned caps aside.

In a medium mixing bowl, combine softened cream cheese, sour cream, and shredded cheddar cheese. Use a fork to blend them together until smooth.

Mix in the cooked bacon, green onions, and smoked paprika. Ensure everything is combined well—you want that delicious flavor spread throughout every scoop of cheese.

Generously spoon the cheese mixture into each portobello mushroom cap. Don’t be shy—pack it in there! The cheese will melt down beautifully.

Lightly brush the grill grates with oil to prevent sticking. Place the mushroom caps directly on the grill, cheese side up. Close the lid and grill them for about 6-8 minutes, or until the mushrooms are tender and the cheese is bubbling.

Once cooked, carefully remove the mushrooms from the grill. Let them cool slightly before serving. Enjoy them on their own or over a bed of greens for a complete meal.