Use a strainer to rinse and drain noodles well. Dry as thoroughly as possible, using paper towels. Cut noodles up a bit with kitchen shears (if you've got 'em), and set aside.
Add soup to a skillet and bring to medium heat on the stove. Add noodles and toss to coat.
Stir in tuna and season with spices, to taste. Cook and stir until hot, 1 to 2 minutes.
If you like, garnish with scallions. Serve it up!