Preheat oven to 375 degrees.
Cut an 9x14" piece of parchment paper and place into an 8" square pan (the two longer ends will serve as "handles" to easily pull the baked bars out of the pan. Set aside.
In a large mixing bowl, stir together the first four ingredients (oats through chia).
Make a well in the center of the bowl and add the two eggs, whisking gently without stirring in too much of the oat mixture.
Add the remaining wet ingredients to the eggs, then mix the wet and dry together.
Stir in the shredded coconut, pecans, and 4 Tbsp of the chocolate chunks.
Pour the batter into the parchment lined pan, then sprinkle the remaining 2 Tbsp chocolate chunks on top, pressing them in gently.
Bake for 25 minutes, or until surface is firm, slightly golden, and a toothpick inserted into the center comes out clean.
Cool completely before slicing.
(Makes 9 large squares or 16 small ones)