Preheat the oven to 350 degrees Fahrenheit. Grease six 4-inch tart pans with coconut oil or spray. In a medium bowl, whisk together almond flour, baking soda, and sea salt. Add maple syrup and coconut oil. Blend with a fork until liquid is evenly distributed and you can pinch the dough together with your hands.
Place six 4-inch tart pans on a baking sheet. Equally divide crust mixture between tart pans. Press crust mixture into bottom and up sides of pans. Bake for 10-11 minutes or until crust has started to turn golden brown. Remove from oven and cool in pans on a wire rack. Keep the oven on at 350 degrees.
While the crusts are cooling, spread almonds and pistachios on a baking sheet and roast for 5-8 minutes, careful to not burn nuts. Remove and allow to cool completely before removing from tart pans. Crusts should be almost cool before continuing to the next steps.
In a small saucepan, combine almond butter and maple syrup on low heat, stirring occasionally. Once thoroughly combined, add vanilla extract and pinch of salt. Place nuts in a large bowl and add almond butter mixture. Stir until nut mixture is evenly coated. Add pomegranates and stir to coat. Set aside and prepare maple-sweetened dark chocolate.
Place chocolate in a microwave safe bowl, melt chocolate at 30 second intervals in the microwave, stirring after each interval until you only have a small amount of chocolate pieces remaining. Stir the chocolate until completed melted, then add the vanilla extract, maple syrup, and salt. Stir to combine.
Remove the cooled tart crusts from their tins. Using a small spoon, divide and spread the chocolate on the bottom of each tart crust. Spoon the nut mixture onto each chocolate-filled tart crust. Refrigerate for 30 minutes or until ready to serve. If tarts are refrigerated for over an hour, allow them to sit out for about 5-10 minutes before serving.