Preheat the oven to 375°F and lightly grease the mini muffin tin with coconut oil.
In a small bowl, stir the ground flaxseed and water together and set aside for 5 minutes until the mixture thickens.
Add the cooked quinoa, dates, walnuts, and agave to a food processor and pulse to form a paste.
Press heaping tablespoons of the quinoa mixture into the prepared mini muffin tin.
For the filling, whisk the flax egg in a large mixing bowl.
Add the melted coconut oil, sugar, and brown rice syrup. Mix completely.
Add the almond milk, vanilla extract, whole wheat pastry flour, and chopped pecans. Mix until just combined.
Portion the mixture into the quinoa crusts, filling them to the top.
Bake for 17 to 21 minutes or until the edges of the crusts are browned.
Remove from the oven and let the mini pecan pie bites cool completely before taking them out of the tin.
Top each pie with a dollop of whipped cream and a pecan half. Enjoy!