Crunch Crowned Brownies
["1 (21 to 23 oz.) box fudge brownie mix", "2/3 c. uncooked quick oats", "1/2 c. firmly packed brown sugar", "1/4 c. melted margarine", "1 tsp. cinnamon", "1 1/2 c. M&M's (plain)"]
["Preheat oven to 350\u00b0.", "Prepare brownie mix according to package directions.", "Spread batter into greased 9 x 13-inch baking pan."]
["brownie mix", "oats", "brown sugar", "margarine", "cinnamon"]