Spray a non-stick frying pan with oil. Cook the chicken mince until browned (5 minutes), breaking up lumps. Add the capsicum, onion, pasta sauce, canned tomatoes and Italian herbs. Combine and heat through.
Cut the pasta sheets to fit the lasagne dish. Layer the chicken pasta sauce with pasta sheets, then a layer of mashed pumpkin, then a layer of spinach. Continue this process until you finish with a layer of pasta.
Pour the canned soup over the assembled lasagna and sprinkle a layer of cheese on top. Bake in the oven for 30 minutes.