Tomato Grits
["1 1/4 c. whole milk", "1 tsp. salt", "1 c. quick-cook grits", "1 stick plus 1 Tbsp. butter", "1/3 c. scallions, thinly sliced", "1/4 tsp. garlic powder", "2 1/2 c. shredded Cheddar cheese", "1 (10 oz.) can tomatoes with chilies"]
["Heat oven to 350\u00b0.", "Lightly grease shallow 2-quart baking dish."]
["milk", "salt", "butter", "scallions", "garlic powder", "Cheddar cheese", "tomatoes"]