Which food has less impact on blood sugar?

CRUST (ENRICHED WHEAT FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, ASCORBIC ACID AS DOUGH CONDITIONER, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID, ENZYME], WATER, SOYBEAN OIL AND/OR CANOLA OIL, CULTURED WHEAT FLOUR, SALT, SUGAR, DRIED SOURDOUGH [WHEAT FLOUR, RYE FLOUR, YEAST, ASCORBIC ACID, ENZYME], VEGETABLE MONO- AND DIGLYCERIDES, YEAST, INACTIVE YEAST, EXTRA VIRGIN OLIVE OIL, ENZYME, DURUM WHEAT SEMOLINA), MOZZARELLA CHEESE (CULTURED PASTEURIZED MILK, SALT, ENZYMES), COOKED ITALIAN SAUSAGE (PORK, WATER, SPICES, SALT, CORN SYRUP SOLIDS, DEHYDRATED RED BELL PEPPER, DEXTROSE, PAPRIKA, FLAVORING, GARLIC, LEMON POWDER [CORN SYRUP SOLIDS, LEMON JUICE SOLIDS, LEMON OIL], ANNATTO EXTRACT, PAPRIKA EXTRACT, NATURAL FLAVOR, ROSEMARY EXTRACT), SAUCE (WATER, SEASONING [CHEESE POWDER {ASIAGO, ROMANO MADE FROM COW'S MILK, CHEDDAR AND PARMESAN CHEESE (PASTEURIZED MILK, SALT, CULTURES, ENZYMES), SALT, LACTIC ACID}, WHEY, DEHYDRATED CREAMER {SUNFLOWER OIL, CORN SYRUP SOLIDS, SODIUM CASEINATE, DIPOTASSIUM PHOSPHATE, MONO AND DIGLYCERIDES, SOY LECITHIN}, MODIFIED CORN STARCH, DEHYDRATED NATURAL BUTTER FLAVOR {NATURAL FLAVOR, WHEY, SALT, CORN SYRUP SOLIDS, BUTTER, GUAR GUM, BUTTERMILK, NONFAT DRY MILK, ANNATTO AND TURMERIC}, SALT, DEHYDRATED PARMESAN AND ROMANO CHEESE {MADE FROM COW'S MILK, SALT, CULTURES, ENZYMES}, AUTOLYZED YEAST EXTRACT, DIPOTASSIUM PHOSPHATE, LACTIC ACID {CONTAINS CALCIUM LACTATE}, XANTHAN GUM, DEHYDRATED GARLIC, DEHYDRATED ONION]), MUSHROOMS, CARAMELIZED ONIONS (YELLOW ONION, SUGAR, APPLE JUICE CONCENTRATE), OREGANO.