Which food has less impact on blood sugar?

SPINACH TORTILLA (BLEACHED WHEAT FLOUR, WATER, SHORTENING [INTERESTERIFIED SOYBEAN OIL, DISTILLED MONOGLYCERIDES], RICE FLOUR, SALT, LESS THAN 2% OF: SUGAR, BAKING POWDER [CORN STARCH, SODIUM ALUMINUM PHOSPHATE, SODIUM BICARBONATE], DRIED SPINACH, YEAST, PRESERVATIVES [CALCIUM PROPIONATE, POTASSIUM SORBATE, CITRIC ACID], CELLULOSE GUM, BUTTER BUDS [MALTODEXTRIN, NATURAL BUTTER FLAVOR], DOUGH CONDITIONER [SODIUM METABISULFITE OR L-CYSTINE]), CHICKEN BREAST MEAT (CHICKEN BREAST WITH RIB MEAT, WATER, CULTURED SUGAR AND VINEGAR, POTATO STARCH, SEA SALT, NATURAL FLAVORINGS), CAESAR DRESSING (SOYBEAN OIL, WATER, HIGH FRUCTOSE CORN SYRUP, PARMESAN AND ROMANO CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES], DISTILLED VINEGAR, EGG YOLKS, SALT, CONTAINS LESS THAN 2% OF: SPICES, ANCHOVY PASTE [ANCHOVIES, SALT, DEFATTED SOY FLOUR, WATER], DEHYDRATED GARLIC, CITRIC ACID, XANTHAN GUM, SODIUM BENZOATE AND POTASSIUM SORBATE [TO PRESERVE FRESHNESS], DEHYDRATED ONION, CARAMEL COLOR, LEMON JUICE CONCENTRATE, DISODIUM INOSINATE AND DISODIUM GUANYLATE, NATURAL AND ARTIFICIAL FLAVORS, CALCIUM DISODIUM EDTA [TO PROTECT FLAVOR]), GREEN LEAF LETTUCE, PARMESAN CHEESE (PART-SKIM MILK, CHEESE CULTURES, SALT, ENZYMES), CREAM CHEESE (PASTEURIZED MILK AND CREAM, CHEESE CULTURES, SALT, STABILIZERS [CAROB BEAN AND/OR XANTHAN AND/OR GUAR GUMS]).