1. Bring a large pot of water (salted or unsalted) to a boil. Add in the red lentil pasta and cook until just al-dente, about 7 minutes. Drain, lightly rinse with cold water to stop cooking, then set aside.
2. Heat a large skillet over medium heat. Add in the onion and cook for 5 minutes, until just soft. Add in the tomatoes and garlic cloves and cook another 2-3 minutes.
3. Add in the zucchini, squash, bell pepper, oregano, and salt and cook another 10 minutes until vegetables are very soft.
4. Add in the cooked pasta and toss to combine. Sprinkle in torn basil leaves and serve.