Your "no effort" meal, sounds like a lot of effort to me.

My low effort meal is "open packet, put ready meal in oven or microwave"

As a depressed person myself this a big part of my diet.

Can I suggest putting some frozen kale or spinach in it as well? For extra veggies and taste. We basically cook that every week and I love it. Granted, I put a tad more effort into it (stir fry onion and garlic and tomato paste before I add rice, lentils, greens and broth) but it's basically the same.

Also try adding soy sauce, smoked paprika, and liquid smoke. Just a drop but it does wonders. Yeast flakes are also great.

I put rice and lentils in a rice cooker, then eat with peanuts and aioli. Add microwaved frozen soy beans / corn if I'm feeling fancy. 5 minutes preparation, 20 minutes of wait.

That's NO effort? When I'm going no effort, it's a PB&J, and even that can take some motivation. Three ingredients is already pushing the envelope, but at least there's no heat involved.

I prep this by mixing dry lentils and dry rice in a box with a measuring cup on it.

Pour mix from cup into pan once, pour water from cup into pan twice, add bouillon cube/stock. Turn stove on medium-low. Wait (take a shower or other 10-15 min activity, or experiment with additional spices into pan). Add veggies like frozen peas or spinach or corn, if feeling fancy. Turn off stove. Eat.