In a separate bowl, whisk together mayo, Greek yogurt, garlic, lemon juice, grated garlic, olive oil, salt, pepper, dill and parsley. Whisk until smooth. Add parmesan and whisk until thick and combined.
1/2 cup mayonnaise, 1/2 cup Greek yogurt, 1/2 cup freshly grated parmesan, 1 garlic clove, grated, 1 medium lemon, juiced, 1 bunch fresh dill, chopped, 2 Tablespoons olive oil, salt and pepper, to taste, 2 Tablespons fresh parsley, chopped