Crikey. Hmm. I really wouldn't know. I make chilli without a packet of mix, so I've no idea what's in it.
I'd suggest you do the same.
Fry off some onions and garlic, then add a carton of passata.
Simmer down the passata a little, and add your protein (quorn, chicken, turkey, mince, whatever you want), a tin of kidney beans, some chopped coriander, a little chilli powder (you didn't want it hot, so don't add fresh chillies, as the heat can be a little random), a touch of white wine vinegar (or, preferably, the vinegar that jalapenos are packed in), whatever other vegetables you fancy, some sundried tomatoes (or sundtried tomato puree), some Worcestershire sauce, a stock cube of your choice to match your protein.
Simmer the lot very, very gently for half an hour or so. Throw in a little more freshly chopped coriander just before serving, et voila.