Preheat the oven to 425 degrees F. Butter a large baking dish. Combine the chicken, ricotta, 1/2 cup parmesan, 3 tablespoons herbs, 3/4 teaspoon salt and 1/2 teaspoon pepper in a medium bowl. Spoon about 1/4 cup filling across the lower half of each crepe; roll up to enclose the filling. Place the crepes, seam-side down, in the baking dish. Cover with foil and bake until the filling is hot, about 15 minutes.
Meanwhile, melt 3 tablespoons butter in a skillet over medium-high heat. Add the shallot and cook until it softens, about 1 minute. Add the asparagus and cook until just tender, about 3 minutes. Add the chicken broth, lemon zest and the remaining 1 tablespoon herbs and simmer until the sauce is slightly thickened, about 2 minutes. Stir in the remaining 1/4 cup parmesan and season with salt and pepper.
Divide the crepes among plates, top with the asparagus and sauce, and sprinkle with parmesan.
In a medium bowl, combine flour and salt. In another medium bowl, whisk together milk, egg, egg yolk, and butter. Gradually add flour mixture to milk mixture, whisking until smooth.
Heat an 8-inch nonstick skillet over medium-high heat. Spoon 2 1/2 tablespoons of batter into skillet; cook for 30 to 45 seconds. Loosen crepe with a spatula, and carefully turn over. Cook for 30 to 45 seconds; transfer to plate. Repeat procedure with remaining batter, stacking crepes on a plate.