Cook the ravioli according to the package directions.
Meanwhile, heat the butter in a large skillet over medium-low heat until it foams. Add the shallots and cook, stirring, until golden, 1 to 2 minutes. Increase heat to medium, add the sage, and cook until the leaves turn crisp, about 1 1/2 minutes. Remove from heat. Season with the salt and pepper.
Return the drained ravioli to the pot, add the butter and sage, and toss gently. Add 1/2 cup of the Parmesan and toss again.
Divide among individual bowls and top with the remaining Parmesan.