Don't think it freezes well but you could try both ways in small batches and compare - report back too!
I pick and eat mine til something else comes through or it flowers, at which point I dig up the rest and give the plants to the chooks to play with. My late mother brought us up eating it raw dipped in vinegar as a 'salad' back in the 70s, so I can get through a fair bit between that, steamed and baked in the oven with a load of root veg..