Place bananas and strawberries in the bowl of a food processor or Vitamix or other high-powered blender. Add almond milk, vanilla and sweetener to taste. Process until smooth and creamy. I find that the food processor needs a little more liquid and a few more seconds to achieve the desired consistency, which is like soft serve ice cream.
Transfer the ice cream to bowls and serve immediately with toppings, if desired. If eating this as a meal for breakfast, try to add protein toppings such as nuts or seeds or add a scoop of protein powder to the blender. If you use a sweetened protein powder, add a handful of ice to the blender so the smoothie is not too sweet.
You can also store the smoothie bowl in the freezer for another time, but you’ll need to allow it to sit on the countertop to soften up for a few minutes before eating so that it’s scoopable.
Notes: these measurements are flexible. Use more strawberries if you like or sub blueberries.