Which food has less impact on blood sugar?

CRUST: ENRICHED WHEAT FLOUR (FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID, ENZYME, ASCORBIC ACID), WATER, SOYBEAN OIL, YEAST, BREAD CRUMBS (WHEAT FLOUR, YEAST, SUGAR, SALT), OLIVE OIL, SUGAR, SALT, CULTURED WHEAT STARCH, HONEY, SODIUM BICARBONATE, SODIUM ALUMINUM PHOSPHATE, L-CYSTEINE, CITRIC ACID. TOPPINGS: SAUCE (WATER, TOMATO PASTE, SOYBEAN OIL, MODIFIED FOOD STARCH, SALT, SPICES, GARLIC POWDER, XANTHAN GUM, PAPRIKA, ONION POWDER, PARMESAN CHEESE [PASTEURIZED CULTURED PART-SKIM MILK, SALT, ENZYMES]), CHEESES (LOW MOISTURE MOZZARELLA CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], PARMESAN CHEESE [PASTEURIZED PART-SKIM MILK, CHEESE CULTURES, SALT, ENZYMES]), FULLY COOKED SKINLESS BONELESS GRILLED GARLIC HERB DICED CHICKEN BREAST MEAT WITH RIB MEAT (SKINLESS BONELESS CHICKEN BREAST FILLETS WITH RIB MEAT, WATER, SEASONING [CORN SYRUP SOLIDS, SALT, SUGAR, GARLIC POWDER, SPICES, HYDROLYZED CORN, SOY AND WHEAT GLUTEN PROTEIN, PARSLEY, ONION POWDER, NATURAL FLAVOR, SOYBEAN OIL], ISOLATED SOY PROTEIN PRODUCT [ISOLATED SOY PROTEIN, MODIFIED FOOD STARCH, UNMODIFIED CORN STARCH, CARRAGEENAN, WITH LESS THAN 2% SOY LECITHIN], ROMANO CHEESE [MADE FROM PASTEURIZED PART-SKIM COW'S MILK, CHEESE CULTURES, SALT, ENZYMES], SODIUM PHOSPHATES), SPICES, DEHYDRATED GARLIC.