In a mixing bowl, whisk together the eggs, pumpkin puree, milk, cinnamon, nutmeg, ginger, and a pinch of salt until well combined and smooth.
Dip each slice of gluten-free bread into the custard, allowing it to soak for about 20-30 seconds on each side so it absorbs the mixture fully without falling apart.
Preheat a skillet or non-stick pan over medium-low heat and add a small amount of butter or cooking spray to prevent sticking.
Place the soaked bread slices in the skillet and cook for 3-4 minutes on each side, until golden brown and caramelized along the edges. Listen for a gentle sizzle and watch for a crispy, browned surface.
Gently flip each slice with a spatula to cook the other side until similarly golden and crisp.
Once cooked, transfer the French toast slices to a plate and serve immediately, topped with your favorite breakfast accompaniments like maple syrup, whipped cream, or extra cinnamon if desired.