Preheat your oven to 350°F (175°C). This ensures that your Healthy Granola Bars bake evenly and achieve a golden-brown color.
Line your 9x13 inch baking dish with parchment paper. This will make it easier to lift the bars out once they are baked and cooled.
In a large mixing bowl, combine the old-fashioned rolled oats, chopped nuts, sunflower seeds (or pepitas), unsweetened coconut flakes, ground cinnamon, and kosher salt. Stir until everything is evenly distributed.
In a separate bowl, mix together the honey, creamy peanut butter, and pure vanilla extract. Microwave the mixture for about 30 seconds to soften it, making it easier to mix.
Pour the wet mixture into the bowl with the dry ingredients. Stir until all the dry ingredients are coated and evenly mixed. The mixture should be sticky and hold together when pressed.
Fold in the mini chocolate chips or any dried fruit or extra nuts you like. This is where you can get creative!
Spread the mixture evenly in the prepared baking dish. Use a spatula to press it down firmly; this will help the bars hold together better once baked.
Place the baking dish in the preheated oven and bake for 20-25 minutes, or until the edges are golden brown. Keep an eye on them to prevent burning.
Remove the baking dish from the oven and let the bars cool in the pan for about 10 minutes. Then, using the parchment paper, lift the bars out and place them on a cutting board. Allow them to cool completely before cutting them into squares or rectangles.