Preheat the oven to 350* F.
In a stand mixer or using a hand mixer, add the butter and 2/3 cups of sugar to a bowl and mix until it is incorporated. Slowly add the flour while continuously mixing until the flour is full incorporated into the butter and sugar and forms a dough. Add the flax seed, vanilla and pinch of salt and mix until combined.
Lightly grease an 8x8 inch baking pan. Separate 2/3 of the dough and gently press onto the bottom of the pan and slightly up the sides of the pan.
Layer the strawberries evenly onto the crust. Sprinkle the remaining 1/2 tablespoon of sugar over top of the strawberries.
Combine the remaining dough, granola, almonds and cinnamon in a bowl and crumble it over top of the strawberries.
Place the baking pan in the over and bake the bars for 40-45 minutes until the top is golden brown. Remove the pan from the oven and let the Gluten-Free Strawberry Crumble Bars cool for 45 minutes prior to cutting.
With a sharp knife, cut into nine pieces and serve.