Bring a large pot of salted water to a boil and cook the chickpea pasta according to package directions until al dente.
While the pasta cooks, dice the chicken breast into bite-sized pieces and season with sea salt and black pepper.
Heat the extra virgin olive oil in a large skillet over medium-high heat.
Add the chicken to the skillet and sauté until golden brown and cooked through, about 5-6 minutes.
Add the cherry tomatoes to the skillet with the chicken and cook for 3 minutes until the skins begin to blister and burst.
Stir in the baby spinach and cook for 30 seconds until just wilted.
Drain the pasta, reserving 1 tablespoon of the cooking water.
Add the cooked pasta, basil pesto, lemon juice, and reserved pasta water to the skillet.
Toss everything together over low heat until the pasta is thoroughly coated and the sauce is creamy.