Ok I cooked a thing. Actually I have been combining these things semi-regularly lately: onions, broccoli, tomatoes and lentils with kecap manis (Indonesian soy sauce).
Tonight though there was no onion so instead I used half a packet of Lipton French Onion soup mix. Other additions: marinated artichokes, the oil that the artichokes were marinated in, and a pinch of saffron. This is to confirm that all of these ingredients together are acceptable.