I would brown the chipolatas as I would brown the beef before adding them to the casserole.
I would and did feed casseroles with wine in to my DC when they were weaned and managing lumps, so maybe about 10m or so.
Other casseroles I did which they loved were Irish stew with lamb, carrots, leeks, onions and potatoes, layered then water added til just above said said layers and a couple of tablespoons of pearl barley thrown in. (flour the lamb first).
Beef shin, cubed, floured and browned, add some softened onions, celery, carrots, half bottle red wine, tin of tomatoes and a beef stock cube. Bring to a simmer and then cover with double layer of foil and the lid and in the oven at 160 for 3 hours or so.
Pork with cider, mushrooms, onions and a bit of cream added for the last 20 minutes or so. Lovely with rice. (I tended to use tenderloin for this)
Chicken with onions, peppers, chorizo,sherry, lemons and oranges with rice cooked in the dish.
Can give more detailed recipes if you want them.