Heat oven to 400° F. In a large bowl, combine the tomatoes, herbs, lemon juice, oil, ½ teaspoon salt, and ¼ teaspoon pepper. Let stand, tossing occasionally.
Meanwhile, cook the pasta according to the package directions. Reserve ½ cup of the cooking water, drain the pasta, and return it to the pot.
Spread the pine nuts on a rimmed baking sheet and toast in oven, tossing occasionally, until golden, 5 to 6 minutes.
Toss the pasta with the ricotta, Parmesan, and enough of the reserved pasta water to create a creamy sauce. Top with the tomato mixture and pine nuts. Serve with more Parmesan, if desired.