1. Preheat oven to 350 degrees Fahrenheit (180 degrees Celsius). Line muffin pans with paper liners and set aside.
2. In a medium bowl, whisk together oil, applesauce, honey, egg, baking soda, baking powder, vanilla, and salt until combined. Add milk and cornmeal. Whisk to combine. Add flour. Switch to a sturdy spoon and stir to combine.
3. Toss diced strawberries with flour to coat. Add to muffin batter and stir until evenly distributed.
4. Spoon the batter into prepared muffin pans, filling each cup about two-thirds full. Bake for 18–20 minutes, until the tops are firm.