Preheat oven to 375 degrees F. Grease 9x9-inch baking dish with coconut oil.

In mixing bowl, combine oats, pumpkin seeds, sunflower seeds, cinnamon, nutmeg, cardamom, baking soda and salt. Whisk to combine.

In separate mixing bowl, combine milk, honey, flaxseed meal, 1-1/2 Tbsp. buttery coconut oil, sunflower butter and vanilla. Whisk until well combined.

In baking dish, spread out 1 cup berries; cover with oat mixture and evenly drizzle on wet ingredients. Scatter on remaining berries.

Arrange banana halves on top and press in slightly; sprinkle coconut sugar on bananas and add drizzle of honey if extra sweetness is desired.

Bake 40 to 45 minutes for fresh berries or 45 to 50 minutes for frozen berries or until top is golden.

Drizzle remaining melted buttery coconut oil on top before serving.