You can dispose of these at home or take them to your local recycling centre (RC).
Which home bin
Any colour plastic pots, tubs and trays, including black ones, can placed in your recycling bin at home. Please ensure they are clean and dry.
Which RC container
Use the mixed recycling container.
Which RC accept this waste
All our recycling centres accept any colour plastic trays, tubs and pots.
You could also...
clean thoroughly and reuse plastic trays as storage containers for small items.