Saus Kubis Brussel & Bawang Merah Krim

Bahan-bahan (4 porsi)

• 2 Tbsp olive oil ((divided))
• 2 1/2 cups Brussels sprouts ((roughly chopped))
• 1 medium shallot ((chopped))
• 2 cloves garlic ((minced))
• 1/2 scant cup sour cream ((light or regular))
• 4 ounces 1/3 fat cream cheese ((1/2 package equals ~4 ounces) )
• 1 cup low-fat shredded mozzarella cheese
• 1/4 cup grated Parmesan cheese ((plus more for topping))
• 1/4 tsp each sea salt and ground black pepper