In a large mixing bowl, mix together the oats, ground flax, and salt.
In a medium glass bowl, combine maple syrup and tahini. Microwave for 1 minute until bubbling. Stir in coconut oil, mashed banana, and vanilla extract. Mix the wet ingredients with the dry oats until fully combined. Chill in the freezer for 10-15 minutes.
Preheat oven to 350°F (175°C). Grease a 12-cup muffin pan.
Fold the chocolate chips into the chilled dough. Divide evenly among muffin cups, pressing from the bottom up to form sides.
Bake for 10-15 minutes, until lightly golden. Cool for 5 minutes, then carefully remove from pan.
Serve warm in a bowl with a generous pour of thick milk, and garnish with berries or extra chocolate chips. Enjoy!