Beef Tenderloin, Creamed Rutabagas, Sugar Snap Peas and Spinach Salad

Most people don't know what a rutabaga is much less how to cook it. It's a yellow or northern turnip as my mom and dad tease. My mom's from New York and my dad from the small town in Louisiana that we live now.  Dad grew up eating regular white turnips and my mom grew up eating the yellow ones called rutabagas. They are in the sweet side and quite delicious. I cook prepare them the same way I do mashed potatoes. Peal and dice them. Then, boil them in salted water until they are tender. Add butter and milk or half & half and blend!