In a medium bowl, whisk together the almond milk, ground flaxseed, vanilla extract, cinnamon, nutmeg, and flour until smooth. Let the mixture sit for about 5 minutes to thicken slightly.
Preheat a non-stick skillet or griddle over medium heat and add 1 tablespoon of coconut oil, allowing it to melt and coat the surface.
Dip each slice of bread into the batter, ensuring both sides are well-coated but not overly soggy. Allow any excess batter to drip off.
Place the coated bread slices onto the skillet and cook for about 3-4 minutes on each side, or until golden brown and crispy. Add more coconut oil as needed for subsequent batches.
Once cooked, remove the French toast from the skillet and serve warm with maple syrup and fresh fruit, if desired.