Sustainability is one of the biggest challenges presently and in the future. Our project, PROVIDE, aims at fostering a circular food system. 45 % of all food raw materials are wasted or downcycled to feed or biogas substrate. Look at spent grains from brewing, press cakes from oil seed processing, side streams from prickly pear cactus, whey from cheese manufacturing and heads bones feet from poultry. We want to use these sidestreams to produce tasty baked goods instead. The project plan starts with processing these sidestreams into baking ingredients. Therefore, green technologies such as supercritical co2 extraction and membrane technologies will be applied to generate ingredients high in valuable proteins and health-promoting compounds.Green Technologies and organic raw materials will also enable us to obtain organic products. The baked goods will be evaluated comprehensively regarding nutritive parameters, health promotion and safety.