One of the best [high-end] late dining deals in town, modern French restaurant Mr & Mrs Bund has set menus from 250rmb per person on Thursday, Friday, and Saturday from 11pm–2am (last order). They offer special prices on select cocktails (buy-one-get-one), champagne, and wine bottles as well. If you're looking for a romantic dinner on the Bund that won't totally break the bank, this is a strong look. Note: offer doesn't apply when they have special events, so you may want to call ahead.