I love an excuse to get the big pans out! For this I used my 28cm stockpot - when you're adding loads of veg, don't be shy - pile it right up to the top because it will all simmer down. This Bolognese is rich and tangy, but uses the cheapest current option for mince, has loads of almost-hidden veg, and added cost-next-to-nowt lentils for even more filling fibre. Adding beef stock to the chicken mince makes it taste more meaty.