Preheat the oven to 350°F. Line 2 cookie sheets with parchment paper. Combine the oats, flax seeds, and sunflower kernels. Place the mixture on one of the cookie sheets. Set the other cookie sheet aside.
Bake the oat mixture for 12-15 minutes or until the mixture is beginning to brown. Remove from the oven and set aside.
In a large skillet heat the butter over medium heat. Once it is melted add in the honey, brown sugar, cinnamon, and vanilla. Mix well.
Heat the mixture until it begins to boil. Remove from heat and stir in the oats mixture, cereal, sea salt, nuts, dried fruit, and raisins. Stir well to coat everything with the honey mixture.
Using a spatula, pour the mixture onto the cookie sheet you set aside earlier. Spread to 1/2-inch thickness. Use another sheet of parchment to shape them into a rectangle.
Allow the bars to set for 15 minutes. Cut into 12 large bars or 16 small bars.
Place the bars on a baking sheet and bake at 200°F for 5 minutes to firm up the bars. Remove from the oven, cool on a wire rack, and store in an air tight container for up to a week.