I don't have a "diet" or "rules" just a few simple guidelines:
1. Calorie-count, even if it's a little bit of an estimate. I do around 1200-1400/day. Sometimes I log it, sometimes I mentally count.
2. Grains and carbs in moderation. I used to track (150 g a day) but now I generally know what that looks like over the course of a day so I keep a mental running log of it.
3. No empty carbs except if it's a small dessert. No fruit juice (only fruit), no white rice (only a small bit of long-grain, brown, etc), etc.
4. Whole foods. Nothing packaged or processed, except in small quantities on special occasions.
I know you have a 3-year-old, but wouldn't you need to cook healthily for him/her anyway? There are tons of recipes that are either a) healthy and quick or b) made in big batches so you can make them once, freeze them, and then pop them in the oven on a busy night. Lentil soups, taco salads (with fresh beans made in the pressure cooker and fresh veggies), homemade tomato sauce for lasagna or eggplant parmesean, healthy veggie casseroles you can make when your little one is asleep and freeze for a few weeks until you need one in a pinch, baked chicken, baked or seared fish (just takes a few minutes of prep!), stir fries with just a bit of soy sauce and a tiny bit of oil, etc. Most of these just take about 20 minutes or so.
Sometimes it's just about making creative substitutions for recipes you would already cook: spaghetti squash instead of spaghetti noodles, sweet potatoes instead of regular potatoes, whole wheat lasagna noodles and veggies instead of beef, reducing the amount of oil, etc.
Just some thoughts. Good luck on your journey!!!
