Which food has less impact on blood sugar?

ROMAINE LETTUCE, DRESSING (SOYBEAN OR CANOLA OIL, WATER, PARMESAN CHEESE [PASTEURIZED PART SKIM MILK, CHEESE CULTURES, SALT, ENZYMES, POWDERED CELLULOSE, SORBIC ACID], EXTRA VIRGIN OLIVE OIL, DISTILLED VINEGAR, EGGS. MUSTARD [WATER, VINEGAR, MUSTARD SEED, SALT, WHITE WINE, FRUIT PECTIN, CITRIC ACID, TARTARIC ACID, SUGAR, SPICE], NATURAL FLAVOR, ANCHOVY PASTE [ANCHOVY, SALT, OLIVE OIL, ACETIC ACID], DEHYDRATED GARLIC, SPICES, DEHYDRATED ONION, XANTHAN GUM, CARAMEL COLOR, POTASSIUM SORBATE AND SODIUM BENZOATE [AS PRESERVATIVES]), GRILLED SEASONED CHICKEN BREAST (CHICKEN BREAST WITH RIB MEAT, WATER, LESS THAN 2% POTATO STARCH, SALT, SUGAR, GRANULATED GARLIC, BLACK PEPPER), ASIAGO CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, CELLULOSE [TO PREVENT CAKING]), LEMONS, CROUTONS (ENRICHED FLOUR, [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID], CANOLA AND/OR SUNFLOWER OIL, SALT, YEAST, 2% OR LESS OF HIGH FRUCTOSE CORN SYRUP, MALTODEXTRIN, GARLIC POWDER, WHEY, ONION POWDER, SPICES, TORULA YEAST, PARMESAN CHEESE [PART - SKIM MILK, CULTURES, SALT, ENZYMES], NATURAL FLAVORS [MILK], CULTURED WHEY, CALCIUM PROPIONATE [PRESERVATIVE], CITRIC ACID, CORN SYRUP SOLIDS, DISODIUM INOSINATE, DISODIUM GUANYLATE, CARAMEL COLOR, SUGAR, SOY SAUCE SOLIDS [WHEAT, SOYBEANS, SALT], TAMARINDS, ENZYMES, ASCORBIC ACID, TBHQ [TO PRESERVE FRESHNESS]).