Meatless Monday is a global movement, a way of life. Eating less meat has been proven to reduce the risk of disease, curb obesity and has important environmental impacts, too. Will you join us in giving up meat, just for one day a week?

Soup season has officially started. And while we love our hearty chilies and simmered-for-hours stews as much as ever, they're not exactly easy to throw together in a flash. This brilliant recipe has just 15 minutes of prep and uses leftover baked potatoes, which both cuts down on cooking time and lets you use things in your fridge. Its velveteen finish and comforting flavors are amplified with buttermilk, sour cream and Parmesan cheese. Garnish the bowl with chives just before serving — they'll add a hint of onion-y flavor and make for a beautiful presentation.

Leftover Baked Potato Soup

4 large leftover baked potatoes, halved. pulp scooped out and put through a ricer

In a large saucepot, over high heat melt the butter and add the leeks and garlic. Cook over medium heat until they are translucent. Add the hot stock and whisk to combine.

In a separate bowl, whisk together the riced potatoes, buttermilk, sour cream, and grated Parmesan. Add this mixture to the soup stirring constantly. Season with salt and pepper. Remove from the heat and add the Sherry vinegar.

Ladle into bowls and garnish with chives.