Mix canola oil and sugar together until combined.

Add the egg and vanilla extract, and mix until the sugar granules are less noticeable.

Sift the whole wheat flour and baking powder into the mixture and combine.

Add toasted oatmeal, nuts, and chocolate chips, and mix gently using a folding motion.

Divide the dough into portions, flatten slightly, and place on a baking tray. Add extra chocolate chips on top if desired.