Step 1

For the sauce: Combine the sauce ingredients in a small bowl, stir together, then set aside.

Step 2

For the noodles: Heat the oil in a medium sauté pan over medium-high heat. At the first whisp of white smoke, cook the garlic and serrano, stirring, until the garlic is light brown, about 1 minute. Add the tofu and onions, stirring constantly, until the tofu starts to brown, 1 to 2 minutes. Add the noodles and cook, tossing, until the noodles are soft and slightly browned on the edges, about 2 minutes. Add the sauce, basil, and tomatoes. Cook, tossing to combine, until the noodles completely absorb the sauce, 3 to 5 minutes.