Cauli Shepherds Pie

Name: Cauli Shepherd's Pie
Ingredients: 1 medium head cauliflower, cut into florets; 3 oz. cream cheese, softened; 0.25 c. whole milk; 1 tbsp. extra-virgin olive oil; 1 large onion, chopped; 2 carrots, peeled and chopped; 2 cloves garlic, minced; 1 lb. ground beef; 1 c. frozen peas; 1 c. frozen corn; 2 tbsp. all-purpose flour; 0.667 c. low-sodium chicken broth; 1 tbsp. freshly chopped parsley, for garnish