Walmart has the Hamilton Beach 700W Microwave Oven (several colors, EM720CGA-PMB) for $46 with free shipping. List price: $55. Features 700 watts with 10 power levels, digital, one-touch cooking, minute timer, child safety lock, cooking end signal.
Walmart has the Hamilton Beach 0.7-Cubic Foot 700-watt Microwave Oven (several colors) for $46 with free shipping. Features 10 power levels, six quick-set buttons, and child lockout.
Amazon has the Aotto Portable Oven ( Black) for $36.95 - $13.95 off with coupon P7MU4G7F = $23 with free shipping. List price: $46. It features a mini food warmer design with Automatic Temperature Control, max temperature of 239°F, can be used for reheating and cooking.
Has excellent Amazon Reviews.