Amy's vegetarian cusine

Question

There is a company called Amy's and they make vegetarian frozen foods. Looking through their ingredients it would appear that some of their products are kosher even without a heksher. However, they also produce foods with Parmaesan Cheese. This cheese is not Gevinat Yisroel. Would we be able to eat the products that do not contain any cheese or can we not eat them because some of the products do contain cheese?