No, you do not. Suvie Meals are completely optional, you can cook your own food in Suvie.
We've created an entire website dedicated to cooking with your own ingredients in Suvie. Please check out our articles, guides, and delicious recipes produced in-house by our culinary team at: https://blog.suvie.com/
You can sign up for Suvie Meals at any time, you will be invited to subscribe just prior to the appliance shipping, but can join later thereafter. You can also continue to enjoy your Suvie with your own ingredients and meals. Having that flexibility is key to the Suvie experience!