Which food has less impact on blood sugar?

TORTILLA ENRICHED UNBLEACHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE {VITAMIN B1}, RIBOFLAVIN {VITAMIN B2}, FOLIC ACID], WATER, CANOLA AND/OR PALM OIL, SODIUM ACID PYROPHOSPHATE, SODIUM BICARBONATE, LESS THAN 2% OF SALT, SOY OIL, L-CYSTEINE, BASIL, SPICES, GARLIC, NATURAL ROMANO CHEESE FLAVOR, WHEAT GLUTEN, MONO-DIGLYCERIDES, SUGAR, SODIUM ALUMINUM SULFATE, SODIUM STEAROYL LACTYLATE {SSL}, GUAR GUM, SODIUM METABISULFITE, POTASSIUM SORBATE, FUMERIC ACID, CALCIUM PROPIONATE [PRESERVATIVE]); CHICKEN STRIPS, (BONELESS, SKINLESS CHICKEN BREAST MEAT WITH RIB MEAT, WATER, SEASONING [MALTODEXTRIN, SALT, SUGAR, CHICKEN STOCK, VEGETABLE STOCK {CARROT, ONION, CELERY}, FLAVORS, CARROT POWDER AND GARLIC POWDER], MODIFIED FOOD STARCH, SODIUM PHOSPHATES, SOY PROTEIN CONCENTRATE, SEA SALT); MOZZARELLA CHEESE (LOW MOISTURE PART SKIM MOZZARELLA CHEESE [PASTEURIZED PART-SKIM MILK, SKIM MILK, SALT, CHEESE CULTURES, ENZYMES); PESTO (BASIL, CANOLA OIL, WATER, PARMESAN CHEESE [PASTEURIZED PART SKIM COW'S MILK, CHEESE CULTURE, SALT, ENZYMES}, GRANULATED GARLIC, SALT); LETTUCE