Toast the sunflower seeds in a dry skillet over medium heat until they turn golden and fragrant, about 3-4 minutes. Let them cool slightly.
Grind the flax seeds in a spice grinder or food processor until finely ground, making the omega-3s more accessible.
In a small saucepan, gently warm the honey and melted coconut oil over low heat just until combined and slightly fragrant, about 30 seconds to 1 minute. Remove from heat.
Pour the warm honey mixture over the toasted sunflower seeds, ground flax, oats, and vanilla in a large bowl. Stir thoroughly with a sturdy spatula until everything is evenly coated and sticky.
Add the dried cranberries to the mixture and fold in gently, distributing them evenly throughout the mixture.
Line a baking sheet or dish with parchment paper. Using your hands or a small scoop, form the mixture into 1-inch balls and place them on the prepared sheet, slightly flattening if desired.
Refrigerate the bites for at least 30 minutes until they firm up and become slightly tacky but hold their shape.
Once firm, transfer the bites to an airtight container and store in the fridge for up to one week or freeze for longer storage. Enjoy straight from the fridge for maximum crunch and flavor.