Preheat oven to 350°. Flatten chicken to 1/4-in. thickness.
Combine poultry seasoning, pepper, curry powder, garlic powder and salt; sprinkle over chicken.
Combine broccoli and cheese; place half the mixture in the center of each chicken breast. Fold long sides over filling; fold ends up and secure with toothpicks.
Place, seam side down, in an 8-in. square baking pan; add broth. Cover pan loosely with foil.
Bake 30 minutes.
Remove foil; baste the chicken with pan juices.
Bake, uncovered, until chicken is no longer pink, about 10 minutes longer.
Remove toothpicks before serving. If desired, thicken pan juices for gravy.