Preheat oven to 375 degrees F. In a small bowl, stir together cereal and yogurt; let stand 5 minutes.
Meanwhile, in a medium bowl, whisk together flour, baking powder, baking soda and salt. In a separate medium bowl, whisk egg lightly; whisk in almond milk, maple syrup and butter. Stir yogurt mixture into egg mixture. Add flour mixture and stir until just combined.
Line 12 standard muffin cups with liners. Spoon batter into cups and sprinkle with pecans. Bake 16 to 18 minutes or until tops are lightly browned and a toothpick inserted in center of muffins comes out clean. Cool muffins in pan 5 minutes; move muffins from pan to wire rack and cool completely.