Preheat the oven and keep the temperature to 325℉ (163℃).
Mix the pecans, cinnamon, salt, maple syrup, almonds, oats, vanilla extract, coconut oil, and shredded coconut. Stir all ingredients until well combined.
Distribute this mixture evenly in the 6 mini tart pans.
Press the mixture with a spoon to the pan’s bottom and sides.
Bake them in the oven for 25 minutes until it turns brown.
Remove the tray from the oven once the cups are baked.
Let them cool while you prepare the filling.
Mix the Greek yogurt with berries and chia seeds.
Fill a spoonful into the baked cups once they cool down.
After filling them out, serve them immediately to avoid sogginess.
You can keep the baked cups in an airtight container.