- Take a pan of 13x9x2-inch, line it with foil then grease the foil with butter; set aside.
- Mix butter and marshmallows in a large bowl. Cook over low heat, stirring until marshmallows are melted. Stir in rice cereal, sunflower seeds and granola cereal.
- Press the mixture in prepared pan and let cool.
- Lift with the help of foil to bring set mixture out of pan, remove foil and cut mixture into bars or squares.
- Serve or reserve!