Raw and cooked vegetables, except for broccoli and sweet corn, with non-fat sauces such as salsa. Fruits except for avocados, peaches and kiwi. Melon, berries, citrus, plums. Check labels for fat content -- there are non-fat muffins, for instance.

I don't think one meal will blow either your diabetes (unless your "brittle") or your blood pressure sky-high. Just watch your exchanges, if you do that, and your caloric intake.