Preheat oven to 400 degrees.
Wash fruit. Let dry on towel while preparing the recipe. Dice up the strawberries.
Mash the bananas.
Using a pastry blender or fork, blend together the flour, sugar, butter, baking powder,salt the cinnamon.
Place the mashed bananas into a large bowl (stand mixer bowl). Add in the eggs, beating after each one. Mix in the milk and vanilla.
Slowly add in the dry ingredients. Mix just until everything is combined.
Using a spatula, gently mix in the remaining fruit.
Place batter into lined jumbo muffin cups. Fill the muffin cups ½ - ¾ full.
If adding the topping, sprinkle a little on each muffin before baking.
Bake for 25 minutes.
Let cool slightly before serving.