Sheet pan sausage and veggies: Set oven to 400. Grab sausage (pre-cooked is fine, my kids like sweet Italian) and your favorite vegetables - a good combo is peppers, onion, potato, broccoli. Toss in olive oil, Italian seasoning, 1 or 2 cloves minced garlic (or you could use the jar) and salt and pepper. Cook for ~15-20 mins, or until vegetables are crispy. If you don't like sausage, diced chicken would work. Tossing it with parm would be tasty.
Rachel Ray Peasant Pasta: This is easy and kids like it.
https://www.foodnetwork.com/recipes/rachael-ray/peasant-pasta-recipe-1940350 If you are lower carb, Dreamfield's penne tastes like normal pasta. My family will always eat pasta. Raos, lower carb noodles, throw in some spinach, add shrimp or sausage. Easy!
Soup is generally not hard. This is a good one --
https://www.cookingclassy.com/olive-garden-pasta-e-fagioli-soup-copycat-recipe/ --
https://www.cookingclassy.com/vegetable-soup/
Agree that tacos are super foolproof. I like this recipe:
https://www.skinnytaste.com/madisons-favorite-slow-cooker-beef-tacos/
Shrimp is really easy and quick. Get fresh or frozen raw, deveined so you don't have to deal with cleaning them. If frozen, thaw in cold water. Pat dry and toss in a bowl with a splash of your favorite white wine, garlic powder, Italian seasoning, salt and pepper. Cook the shrimp in a hot pan til opaque, tossing halfway through. Serve with steamed or roasted broccoli (25-30mins @ 400 tossed in salt, pepper, olive oil, and parm, squeeze lemon over top when done). Serve with rice or pasta if your family needs a carb.
I tend to disagree with the Half-Baked Harvest recommendation. I find her recipes overly complicated for not a lot of pay-off. They tend to have extra steps and ingredients that you don't necessarily have lying around.
Skinnytaste, Damn Delicious, Budget Bytes, and places like Delish are websites I personally prefer.
Good luck OP!