brussell sprouts (either 2-12 oz frozen bags or 2 1/2 cups fresh) cut in half, 14 oz can artichoke hearts-chopped, green onions, chopped, shallot, chopped, garlic, minced, olive oil, buttermilk, neufchatel cheese (or regular cream cheese) (1/2 pkg), plain greek yogurt, shredded mozerella cheese, chopped fresh rosemary, plus 1 tsp for topping, balsamic vinegar