Prepare the Cheesecake Filling:**
- In a medium bowl, beat the cream cheese, powdered sugar, and vanilla extract together until smooth and creamy. Set aside.
**Prepare the Strawberry Banana Filling:**
- In a separate bowl, combine the sliced strawberries, bananas, sugar, and lemon juice. Toss gently to coat the fruit and set aside.
**Assemble the Stuffed French Toast:**
- Spread a generous layer of the cheesecake filling onto one side of each slice of bread.
- Top half of the slices with a spoonful of the strawberry banana filling, then place another slice of bread on top to make a sandwich, with the cheesecake filling inside.
**Prepare the French Toast Batter:**
- In a shallow bowl, whisk together the eggs, milk, cinnamon, and vanilla extract.
**Cook the French Toast:**
- Heat a large skillet or griddle over medium heat and add 1 tablespoon of butter.
- Dip each stuffed sandwich into the egg mixture, making sure both sides are coated.
- Place the sandwiches in the skillet and cook for 3-4 minutes per side, or until golden brown and cooked through. Add more butter to the skillet as needed for additional batches.
**Serve:**
- Remove the stuffed French toast from the skillet and place on a serving plate.
- Dust with powdered sugar and drizzle with maple syrup if desired. Garnish with extra strawberries and bananas for an extra fruity touch.
- Serve immediately, enjoying the warm, creamy, and fruity flavors in every bite.