Preheat oven to 350F. Line a large baking sheet with parchment paper. Arrange oats in a single layer and bake for 10 to 15 minutes, keeping an eye so they don’t burn. Set aside to cool
Transfer oats to a large bowl. Add chopped pistachios and flax seeds and toss well
In a small saucepan, combine honey or agave with vanilla extract and coconut oil. Cook over medium-low heat, stirring constantly until the coconut oil has melted. Whisk in almond butter and and continue cooking for 1 to 2 minutes until well incorporated.
Remove from heat and add Goji berries. Pour mixture over oats and mix well with a wooden spoon, making sure they are well coated
Coat a 11inx7in nonstick baking pan with cooking spray. Transfer oat mixture evenly, pressing it well into the pan (the more you press it, the better the bars will stick together!). Refrigerate until firm (at least 2 hours), remove from pan and cut into bars. Makes about 12 bars (depending on the size you want them). Keep the bars refrigerated