01 - Preheat oven to 350°F (175°C). Line a 12-cup muffin tin with paper liners or grease thoroughly.
02 - In a large mixing bowl, stir together rolled oats, ground flaxseed, and salt until evenly distributed.
03 - In a small saucepan over low heat, gently warm creamy peanut butter, honey, and vanilla extract, stirring continuously until smooth and fluid.
04 - Pour the warmed peanut butter mixture over the oat mixture and blend well with a spatula until fully incorporated.
05 - Evenly distribute the blended mixture among muffin cups. Press firmly into the base and up the sides using the back of a spoon to mold cup shapes.
06 - In a separate bowl, combine mini chocolate chips, dried cranberries, chopped almonds, pumpkin seeds, and sunflower seeds.
07 - Spoon the mixed topping into each cup, pressing gently to secure it in place.
08 - Place tin in oven and bake for 12 to 15 minutes, or until cups are set and lightly golden at the edges.
09 - Let cups rest in the pan for 10 minutes before transferring to a wire rack to cool completely.
10 - Store cooled cups in an airtight container at room temperature for up to 4 days.