Preheat your oven to 300°F and spray an 8×8-inch pan with cooking spray.
Roast the oatmeal and the sesame seeds on separate pans for 5 mins. They will be just very lightly browned.
In a large microwave-safe bowl, melt the coconut oil, mini marshmallows, and peanut butter. I microwaved mine on half power for 1 minute, stirred, and then did another 30 seconds. You don’t want to burn the marshmallows, so make sure to use only half power.
In a separate large bowl, mix together the puffed brown rice, peanuts, raisins, cranberries, apricots, sunflower seeds, and toasted oatmeal.
Pour the dry ingredients into the marshmallow mix and stir until everything is well combined.
Sprinkle half of the toasted sesame seeds evenly into the bottom of the prepared pan. Then, pour in the Rice Krispie mixture and press down HARD, until it forms a compressed, even layer.
Sprinkle with remaining sesame seeds and gently press to adhere to the bars.
Let mixture set for 15 to 20 minutes in the refrigerator before slicing it into bars and serving.