Ingredients:
1 head cauliflower, trimmed and cut into 1-inch pieces
2 small Yukon gold potatoes, peeled and cut into 1-inch dice
2 cups heavy cream, plus more as needed
1/4 cup chopped fresh flat-leaf parsley
1 clove garlic, chopped
3 sprigs thyme
Salt and white pepper
Black pepper
4 petite filet mignons (about 11/2 pounds total)
2 tablespoons butter
1 lemon, cut into wedges