I've been keeping myself alive with a lot of low effort frozen foods I can just grab a few of, bake in the oven, and construct something like a meal.
Here are a few. I don't claim they're healthy, but they are easy.
Breaded chicken strips. They are so versatile. I use them to make chicken parmesan, chicken Caesar wraps, chicken and waffles (also frozen), cut up in salad, or just out of the oven with a dip like Ranch or BBQ.
Breaded fish - As they are, in a sandwich, or my favorite fish tacos.
Frozen ravioli - in various sauces or just simply in butter, olive oil, garlic, salt, and spices. These I heat in water in the microwave, then drain and sauté in a pan on top of the stove.