In a bowl, stir together the flour and salt. Whisk in eggs until well combined, followed by milk and butter. Let batter rest 20 minutes. Heat a nonstick crepe pan or small skillet until hot. Add oil. Pour 1/4 cup of batter into pan and swirl to cover the bottom. Cook until batter is set and lightly browned. Turn crepe and cook the other side. Continue making crepes and stack onto a plate. Cover to keep warm.FILLING
In a small saucepan, bring butter and water to a boil. Whisk in White Wine Garlic Sauce packet contents. Reduce heat and simmer for 3 minutes. Cover to keep warm.
In a large skillet, heat the olive oil and add the onion. Cook until softened. Add mushrooms and cook until lightly browned. Add spinach and cover the pan until wilted. Add chicken and stir to combine. Stir in the prepared sauce.ASSEMBLY
Place an eighth of the filling onto each crepe and fold into quarters, (or roll into cylinders) if desired. Serve 1 crepe per person for an appetizer or light brunch or two crepes per person for a main course meal.