Instructions:
Preheat the oven to 375°F (190°C) and line a 12-cup muffin tin with liners.
In a large bowl, whisk together the oats, flour, baking powder, baking soda, cinnamon, nutmeg, and salt.
In a separate bowl, combine the milk, yogurt, pear sauce, maple syrup/honey, coconut oil, and vanilla extract.
Add the wet ingredients to the dry ingredients and mix until just combined. Do not overmix and set aside.
In a small bowl, combine the oats, nuts, brown sugar, flour, and cinnamon for the crumble topping. Add melted coconut oil or light butter and stir until the mixture resembles coarse crumbs.
Divide the muffin batter evenly among the prepared muffin cups.
Add 1-2 tablespoons of diced pear on top and sprinkle the crumble topping evenly over the muffin batter.
Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.
Let the muffins cool in the muffin tin for 10 minutes before transferring them to a wire rack to cool completely.