I've swapped plastic food storage containers for glass Pyrex ones, and black plastic cooking utensils for silicone tools - and I think a few of these metal IKEA 365+ Food Storage Baskets with Lid ...
One travel hack I've started using is taking a collapsible mesh laundry hamper with me on trips. When my basket isn't filled with dirty clothes, it lays flat on top of my clothes in my suitcase.