Which food has less impact on blood sugar?

LETTUCE, PESTO CHICKEN (ROASTED SEASONED PULLED CHICKEN BREAST [CHICKEN BREAST WITH RIB MEAT, WATER, SEA SALT, VINEGAR], CREAMY BASIL SAUCE [BASIL, WATER, CANOLA AND/OR SUNFLOWER OIL, GARLIC, PARMESAN CHEESE (PASTEURIZED COW'S MILK, CHEESE CULTURE, SALT, ENZYMES), SALT, LEMON JUICE CONCENTRATE, MODIFIED FOOD STARCH, XANTHAN GUM]), CAESAR ROMANO DRESSING (VEGETABLE OIL [CANOLA AND/OR SOYBEAN OIL]. WATER, ROMANO CHEESE [MILK, CULTURE, SALT, ENZYMES], EGG YOLK, LESS THAN 2% OF DISTILLED VINEGAR, SALT, DRIED GARLIC, DIJON MUSTARD [DISTILLED VINEGAR, WATER, MUSTARD SEED. SALT, WHITE WINE, CITRIC ACID, TURMERIC, TARTARIC ACID. SPICES], SUGAR, LEMON JUICE CONCENTRATE, ANCHOVY PASTE [ANCHOVIES, SALT, WATER], GROUND MUSTARD, SPICE, XANTHAN GUM), PARMESAN CHEESE (PARMESAN CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], POWDERED CELLULOSE [TO PREVENT CAKING]), MULTIGRAIN CROUTONS (WHEAT FLOUR, SUNFLOWER AND/OR SAFFLOWER OIL, CRACKED RYE, CRACKED WHEAT. YEAST, WHEAT GLUTEN, SALT, 2% OR LESS OF SUGAR, DEHYDRATED ROASTED GARLIC, NATURAL OLIVE OIL FLAVOR).