Preheat oven to 400 degrees Fahrenheit. Line two baking sheets with parchment paper or a silicone baking mat.
In the bowl of a stand mixer, add butter, brown sugar, and sugar and mix on low using the paddle attachment. Increase to medium and mix until smooth, about 1 minute.
Add in the eggs and vanilla extract and beat until just combined, about 30 seconds.
Add in all purpose flour, baking powder, baking soda, and salt. Mix until just combined. Add in the quick oats and mix until just combined.
Pour in the chocolate chips, pecans, and coconut flakes and mix in using the paddle attachment or use a large spoon or rubber spatula to fold in.
Divide the dough into about 12 equal pieces. Use hands to roll into large balls. Place onto prepared baking sheets, 6 per pan.
Bake in the 400 degree oven for 10-12 minutes, until tops are golden brown.
Let cool on pan 15 minutes before serving warm, or transfer to a wire rack to cool completely.