Looks like you have your dairy in there. The other often-recommended addition is beans. On Phase 1 I would often just randomly eat a bowl of beans. Or have refried beans with some melted cheese and salsa.
Also like
hpnodat said, nuts and nut butters help a lot. I usually limit myself to the one serving per day since they are high-calorie but honestly in Phase 1 I go over sometimes. Like a serving of nuts as a snack and maybe later celery with natural peanut butter (though that would be like 1.5 servings since I don't eat 2 Tablespoons of pb at a time).
You could make your yogurt snack go further by making it into a smoothie - add whatever combination you want from Phase 1 items (nut butter, spinach/kale/etc, protein powder, cocoa powder, Torani sugar free syrups).
My very filling go-to snack is hummus with raw veggies.
Make sure your veggie servings are huge! When I eat broccoli at dinner it is probably 2 cups and I eat salad out of a giant mixing bowl
I hope you figure out how to not be hungry! It is a hard adjustment at first - depending on how you were eating before - but if it's any consolation, I have found it gets much better after the first few days.