Companion planting and composting is most of what we do. Also just overall density— for example, we have probably 2-3x the recommended number of tomato plants in a 4x10 raised bed, and are managing it by aggressively cutting back blighted leaves and controlling sucker growth + providing lots of physical support for the plants themselves.

Agree on staging as a challenge; I haven't figured out a good system for that. Conventionally, preserving has been the answer, but it's a lot of work to make that much tomato sauce and salsa, and better hope you like it if you'll be stuck eating it all winter!