In a medium bowl, mix the softened cream cheese, diced strawberries, and sugar until well combined. Set aside.

In a shallow dish, whisk together the eggs, milk, vanilla extract, cinnamon, and salt (if using) to make the batter.

Spread a generous layer of the cream cheese mixture onto one side of 6 slices of brioche bread. Top each with another slice of bread to form a sandwich.

Heat a large skillet or griddle over medium heat and add a small amount of butter to coat the surface.

Dip each sandwich into the batter, ensuring both sides are well coated but not overly soaked.

Place the sandwiches on the skillet and cook for 2-3 minutes per side, or until golden brown and cooked through. Work in batches if necessary, adding more butter to the skillet as needed.

Remove the French toast from the skillet and keep warm while cooking the remaining stuffed bread.

Serve immediately with your choice of toppings and enjoy!