Roasted Cauliflower Salad - Fresh-Pressed Olive Oil

Ingredients

• 1 large head of cauliflower, trimmed
• 2 cloves garlic, minced
• 4 tablespoons extra virgin olive oil, divided use, plus more for serving
• Coarse salt (kosher or sea) and freshly ground
• black pepper, to taste
• 1/4 cup chopped fresh at-leaf parsley
• 16 pitted green olives, such as Cerignola, chopped
• 3 tablespoons brined capers, drained
• 1 1/2 tablespoons fresh lemon juice
• 1/4 teaspoon red pepper flakes, or more to taste