Add the minced garlic and red pepper flakes (if using) and cook for another minute until fragrant. Stir in the tomato paste and cook for 2 minutes, stirring constantly, to deepen the flavor.
Pour in the crushed tomatoes, dried oregano, dried basil, salt, and pepper. Stir everything together, bring to a simmer, then reduce the heat to low. Cover and let the sauce simmer for at least 20 minutes to allow the flavors to meld.
While the sauce simmers, cook your pasta according to package directions. Before draining, reserve about 1 cup of the starchy pasta water.
Carefully transfer the simmered tomato sauce to a high-speed blender. Add the drained silken tofu (Trick #1), nutritional yeast (Trick #2), and fresh lemon juice (Trick #3).
Blend on high for 1-2 minutes, or until the sauce is completely smooth and creamy. If the sauce is too thick, add a splash of the reserved pasta water and blend again until you reach your desired consistency.
Pour the creamy sauce back into the skillet and warm through over low heat. Taste and adjust seasoning with more salt or pepper if needed.
Toss the sauce with your cooked pasta until well-coated. Serve immediately, garnished with fresh basil.