4 zucchini, halved lengthwise
6 TBSP butter
½ cup panko breadcrumbs
½ cup grated or shredded parmesan
1 cup finely diced sweet onion
1 garlic clove, minced or grated
2.5 cups corn kernels, fresh or frozen
Salt and pepper, as needed
2 oz. cream cheese
½ cup sour cream