I'm wanting to call it a young yellow striped armyworm.

Noctuid moth caterpillar of some kind, sometimes known as armyworms or cutworms. Best immediate results by plucking and drowning, some of these feed by night, some day&night. Other controls include Bt, spinosad, horticultural oil, etc. The oil might be hard to remove from greens.

The 1- or 2-inch brown moths you see roosting on walls or flying at night are the cause of these caterpillars.