Mushroom cultivation with coffee grounds and spent grain will create a circular economy for small-scale and urban farmers. In pursuit of a no-waste system of food production, mushroom cultivation also provides soil amendment opportunities with composting after harvesting. Mushroom compost can supply nutrients and increase the water holding capacity of the soil. In combination with other plant materials, mushroom compost can be a low-cost solution for soil improvement that meets the needs of the individual farmer. Cooperation between local farmers, brewers and coffee vendors will develop business to business relationships to create a robust economy with shared benefits. The utilization of safe and effective practices for sterilization on a small scale, a workshop to build and maintain vendor-farmer relationships along with data to reflect high yield procedures will ensure that the amateur urban farmers and small-scale farmers can be successful with mushroom cultivation. A decrease in the amount of trash accumulated in the dump and a reduction in trash fees for local businesses are a few of the advantages of mushroom cultivation with spent grain and coffee grounds. Start-up costs and reliable research are barriers to incorporating new growers into the community at large.