Which food has less impact on blood sugar?

GARLIC HERB TORTILLA (BLEACHED WHEAT FLOUR [ENRICHED WITH NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, AND FOLIC ACID], WATER, VEGETABLE OIL SHORTENING [LIQUID AND PARTIALLY HYDROGENATED SOYBEAN OIL, HYDROGENATED COTTONSEED OIL AND/OR INTERESTERIFIED SOYBEAN OIL, HYDROGENATED SOYBEAN OIL], HIGH OLEIC SAFFLOWER OIL EXPELLER PRESSED, DEXTROSE, DEHYDRATED RED BELL PEPPER, DEHYDRATED, GREEN BELL PEPPER, PARSLEY, SUNFLOWER OIL, SALT, SODIUM BICARBONATE, MONO - AND DIGLYCERIDES, CORN STARCH, GUAR GUM, TO PRESERVE FRESHNESS [POTASSIUM SORBATE, CALCIUM PROPIONATE AND FUMARIC ACID] ENZYMES, SODIUM METABISULFATE AND/OR L - CYSTEINE, SILICON DIOXIDE), LETTUCE, HAM (PORK CURED WITH WATER, CONTAINS LESS THAN 2% OF DEXTROSE, SALT, SODIUM LACTATE, SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SMOKE FLAVORING, SODIUM NITRITE, SODIUM DIACETATE), PROVOLONE CHEESE (CULTURED PASTEURIZED MILK, SALT, ENZYMES), PEPPERONI (PORK, BEEF, SALT, CONTAINS LESS THAN 2% OF: DEXTROSE, SPICES, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, GARLIC POWDER, SODIUM NITRITE, BHA, BHT, CITRIC ACID), SALAMI (PORK, BEEF, SALT, CONTAINS 2% OR LESS OF DEXTROSE, WATER, NATURAL SPICES, SODIUM ASCORBATE, LACTIC ACID STARTER CULTURE, SODIUM NITRITE, GARLIC POWDER, BHA, BHT, CITRIC ACID), PEPPERS (RED SWEET PEPPERS, WATER, CITRIC ACID), KALAMATA OLIVES (KALAMATA OLIVES, WATER, SEA SALT, CIDER VINEGAR), PEPPERONCINI (PEPPERS, WATER, SALT, VINEGAR, CITRIC ACID, SODIUM BENZOATE [PRESERVATIVE], SODIUM BISULFITE [TO ENHANCE COLOR], FD&C YELLOW #5).