I'm a big proponent of growing your own food and buying local whenever possible. Here's a list of some of the places that sell fresh produce and meats (and often local artisan's works as well) locally in Halifax/Dartmouth.

Halifax Seaport Farmer's Market
http://halifaxfarmersmarket.com
Pier 20, Halifax Waterfront
Friday International and Farmers’ Market : 8 a.m. - 7 p.m.
Saturday Farmers’ Market : 7 a.m. - 4 p.m.
Sunday Farmers’ Market : 8 a.m. - 4 p.m.
Wednesday Market: 8 a.m. - 4 p.m.
(certain vendors have extended hours, see site for details)
map

Halifax Brewery Farmers' Market
Lower Water Street, Downtown Halifax
Saturdays, year-round: 7 a.m. - 1 p.m.
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Alderney Landing Farmer's Market
http://www.alderneylanding.com/market/index.html#market_hours
Alderney Landing Ferry Terminal, downtown Dartmouth
Saturdays: 8 a.m. - 1 p.m.
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'Local Freshness' Farmers' Market at Dartmouth Crossing
(in the South parking lot of The Shops (next to Globo Shoes)
http://www.dartmouthcrossing.com/events/index.cfm/id/808
Seasonally May to October
Fridays: 10 a.m. - 2 p.m.
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Harbourview Weekend Market
http://www.harbourviewmarket.com/
42 Canal Street, Dartmouth (former Value Village location)
Saturdays & Sundays: 9 a.m. – 4 p.m.
(certain vendors open Thurs-Sun, check site for details)
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For more places in Nova Scotia, check out:
- Farmers' Markets of Nova Scotia Cooperative Ltd.
- Atlantic Canadian Organic Regional Network (ACORN) - search an extensive listing of organic growers in the Atlantic provinces