Heat olive oil in a pan over medium heat and garlic and couscous. Sauté the couscous, constantly stirring, until slightly browned. Add water according to package instructions and top with a lid.
Once couscous is cooked, remove the lid and fluff it with a fork. Add the cherry tomatoes, sun-dried tomatoes and pesto (start with 1/4 cup of pesto) and continue to cook on low for 3-5 minutes.
Add the chickpeas, salt, pepper, red pepper flakes and lemon juice to the pan. Toss to combine.
Turn the heat off and add the arugula and basil. Toss to combine.
If you are eating this warm, serve it right away. If not, allow it to come to room temperature and then place in the fridge until ready to serve.
Serve with additional pesto, arugula and basil to taste.