Keep Kids Fed Act of 2022 This bill provides funding for and makes changes to school meal programs and the Child and Adult Care Food Program (CACFP). It also rescinds certain funds provided under the American Rescue Plan Act of 2021; the Consolidated Appropriations Act, 2021; and the Coronavirus Aid, Relief, and Economic Security Act (CARES Act). Specifically, the bill increases the reimbursement rate for school lunches by 40 cents and for school breakfasts by 15 cents for the school year beginning in July 2022. Further, the bill changes income eligibility for school meal programs for the school year beginning in July 2022. The bill extends the authority of the Department of Agriculture (USDA) to waive certain requirements for the school meal programs and the CACFP to address COVID-19, including by extending authority through September 30, 2022, for USDA to grant waivers related to summer food service programs. The bill authorizes USDA to establish a nationwide waiver of statutory and regulatory requirements under child nutrition programs for the 2022-2023 school year. Additionally, the bill increase the reimbursement rate for meals and snacks under the CACFP by 10 cents for the school year beginning in July 2022. Further, the bill increases the reimbursement of tier II family or group day care homes to tier I amounts for the 2022-2023 school year. The bill rescinds certain funding provided to USDA, the Department of Education, and the Small Business Administration.