PREHEAT oven to 350°F. Bring broth to boil in medium saucepan on medium-high heat. Gradually add cereal, stirring until well blended. Cook 4 min. or until thickened, stirring constantly. Remove from heat; cool 5 min. Stir in onions, eggs and Parmesan cheese; set aside.
COOK and stir broccoli and carrots in hot oil in large skillet on medium-high heat 5 min. or until vegetables are crisp-tender. Stir in beans and garlic powder; spoon into lightly greased 9-inch square baking pan. Top evenly with the cereal mixture.
BAKE 25 min. or until center is set; sprinkle with cheddar cheese. Bake an additional 5 min. Cool slightly.