My son is 7 months, we started weaning at 6. I started him with single veg purée for 2 weeks and then we moved on to mix veg, some fish & now scrambled eggs, porridge and things like that. No meats yet other than tuna.
The thing is he will demolish everything we give him and he’s still taking all his bottles. The portion he has is about 3-4 ice cubes I’d say and he now has breakfast, lunch & dinner, occasionally he’ll have a yogurt for dessert and occasionally one of those Ella’s melty stick things in the afternoon.
I know we’re lucky he enjoys his food but he’s my first and I’m not sure if we’re overloading him! 
I thought the whole idea of “weaning” was weaning them off milk, so he’d gradually drop a bottle and then another and so on so forth. 