Thanks to all for the suggestions. Had 4 good meals in the Twin Cities:
1. Cafe Brenda. Healthy and vegetarian. Creative, reasonable and very tasty. Tandoori shrimp salad was excellent. So was the evening salmon special. Located in the warehouse district which is being renovated. The chef/owner has been there for many years - so she is a real pioneer in my book. Her menu is quite a stretch for the Midwest! Parking validated; reservations recommended. Avg. dinner entree about $15.
2. Nicollet Island Inn. Lovely old inn right on the river in a trendy, re-done area. Sunday brunch was very good. Not a strap-on-the-feedbag type with tons of mediocre food. Every single item was beautifully prepared and presented. I think it was under $20, including champagne.
3. Cafe (really a cafeteria) in the art museum across from the Walker Sculpture Garden. Tiny kitchen offering 2 hot entrees, 2 soups (1 hot, 1 cold), 3 salads and cookies. Every thing was wonderful, and very reasonable too. If they are offering the Cajun Sausage Casserole, give it a try for something different. Hot entrees which came with baby greens salad were about $6.
4. Chiang Mai Thai, in Calhoun Square. Extensive Thai menu, can be quite spicy, and they have several dishes we've never encountered before. Located adjacent to a shopping center which has a big, fabulous kitchenware store. In addition to everything a cook could ever dream of, they also offer a variety of cooking classes.