HEAT oven to 400ºF.
BROWN meat in large nonstick skillet; drain. Stir in tomatoes and seasoning; cook 5 min. or until heated through, stirring occasionally. Meanwhile, prepare Kraft Dinner using the Sensible Solution directions and omitting the non-hydrogenated margarine.
ADD Kraft Dinner to meat mixture; mix well. Spoon into 9-inch square baking dish sprayed with cooking spray; top with Cheddar.
BAKE 10 min. or until cheddar is melted and casserole is heated through.
serving size = 1-3/4 cups (375 mL)