Increased prices (and sufficient demand to justify the price increase - e.g, overall profit increase) is part of the interaction between demand and supply. Sure, demand for food is inelastic, but there are plenty of different suppliers at each level of the supply chain (different food brands, different grocery stores, etc.) who are individually acting to support the price search function (via individual profit maximization).

Price is a signal of scarcity. Food is more scarce due to supply chain issues, therefore food is more expensive. Is that bad? Sure, let's address the supply chain issues, overall macroeconomic inflation and, uh, other disruptions (incl. the UA war).

Unless you are specifically alleging direct conspiracy between food producers to raise prices (e.g., monopolistic action), (also already an illegal thing), there doesn't seem to be a clear call to action here.