There’s a BYOB curry place on the roundabout at the end of Queens Parade called Chai Shai, they do some great veggie food. You can buy pints from the Bag O’Nails next door and take them in. Izakaya at the bottom of Park Street does a lot of good cheap veggie stuff too.
Weather dependent you can walk up to Clifton Village and over the bridge into Leigh Woods, can do a nice loop in there. If the weather is anything like today then it’d be better to stick to town, the magic exhibition at Bristol museum is really good. A combination of St Nick’s market followed by Left Handed Giant is a solid Bristol Saturday.