How to Make It
Cook pasta according to package directions, omitting salt and fat. Drain pasta.
While pasta cooks, cook pancetta in a large skillet over medium, stirring often, until browned and crisp, about 6 minutes. Using a slotted spoon, transfer pancetta to a plate, reserving drippings in skillet.
Add oil, garlic, and crushed red pepper to drippings in skillet; cook, stirring constantly, 30 seconds. Gradually add kale and spinach, tossing with tongs until wilted. Add cooked pasta, lemon juice, and salt; toss gently to combine. Divide among 4 plates. Sprinkle servings evenly with pancetta and almonds.