Place the bacon in a skillet over medium heat. Cook until crisp and golden. Transfer it to a paper towel and let it cool. Crumble the bacon into small pieces once completely cooled.

Wash the jalapeños and remove the stems. Remove some seeds for a milder flavor. Finely chop the peppers. Keep more seeds if you enjoy stronger heat in your appetizers.

Add softened cream cheese, cheddar, and mozzarella to a large bowl. Add chopped jalapeños, green onions, garlic, smoked paprika, pepper, and salt. Stir until everything is evenly combined.

Add the crispy bacon to the cheese mixture. Fold gently until the bacon is spread throughout. Try to keep some larger bacon pieces for extra texture and flavor.

Cover the bowl and refrigerate the mixture for about 20 minutes. Chilling makes the cheese mixture firmer. This makes shaping the cheese balls much easier and less messy.

Scoop small portions of the chilled mixture. Roll each portion gently between your palms. Make balls about one inch wide. Keep the sizes similar so they cook evenly on the grill.

Combine breadcrumbs, Parmesan cheese, and parsley in a shallow bowl. Roll each cheese ball gently through the mixture. Press lightly so the coating sticks to the creamy cheese mixture.

Preheat your grill to medium heat. Lightly brush a grill-safe tray with olive oil. This helps prevent sticking and keeps the cheese balls from falling through the grill grates.

Place the cheese balls on the prepared tray. Grill them for about 8 to 10 minutes. Turn them carefully halfway through cooking for an even golden crust.

The coating should look lightly crisp and golden. Remove the cheese balls from the grill carefully. Let them rest for two minutes before serving. This helps the filling settle slightly.