Preheat the oven to 400 degrees.
Place the beans on a cast iron pan or oven-proof dish,
layer the salmon fillets over the brans, and spread 1 Tbsp of pestosauce on each filet.
Add the tomatoes to the pan, sprinkle sea salt,pepper and squeeze fresh lemon over the top.
Place the pan in your preheated oven and roast for about 20 minutes, until the salmon is flaky, and cooked through.