Which food has less impact on blood sugar?

TORTILLA (UNBLEACHED, ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE {VITAMIN B1}, RIBOFLAVIN {VITAMIN B2}, FOLIC ACID], WATER, PALM OIL, SALT, MONO- AND DIGLYCERIDES, WHEAT FLOUR, SODIUM BICARBONATE, PRESERVATIVES [CALCIUM PROPIONATE, POTASSIUM SORBATE], SODIUM ALUMINUM PHOSPHATE, SODIUM ALUMINUM SULFATE, CORN STARCH, FUMARIC ACID, CALCIUM SULFATE, 2% OR LESS OF: SOYBEAN OIL, MONOCALCIUM PHOSPHATE, HYDROGENATED SOYBEAN OIL, SODIUM METABISULFITE, ENZYMES), TURKEY (TURKEY BREAST, TURKEY BROTH AND 2% OR LESS OF THE FOLLOWING: SALT, SUGAR, CARRAGEENAN, SODIUM CITRATE, SODIUM PHOSPHATE, SODIUM DIACETATE), TOMATO, BLUE CHEESE DRESSING (SOYBEAN OIL, WATER, BLUE CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES], DISTILLED & CIDER VINEGAR, HIGH FRUCTOSE CORN SYRUP, EGG YOLKS, BUTTERMILK SOLIDS, NATURAL FLAVORS, SALT, ONION, GARLIC, SUGAR, MONOSODIUM GLUTAMATE, XANTHAN GUM, PROPYLENE GLYCOL ALGINATE, SPICE, POTASSIUM SORBATE [A PRESERVATIVE], CALCIUM DISODIUM EDTA [PROTECTS FLAVOR]), LETTUCE, HARD-COOKED EGG (EGGS, WATER, CITRIC ACID, POTASSIUM SORBATE, SODIUM BENZOATE [PRESERVATIVE]), BACON (CURED WITH: WATER, SALT, SUGAR, NATURAL SMOKE FLAVOR, SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SODIUM NITRITE)