Which food has less impact on blood sugar?

CRUST (ENRICHED FLOUR [WHEAT FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, PALM OIL, SOYBEAN OIL, YEAST, CONTAINS 2% OR LESS OF: BREAD CRUMBS [WHEAT FLOUR, SUGAR, YEAST, SALT], SUGAR, SALT, ACACIA GUM, ENZYMES, FERMENTED WHEAT FLOUR), SAUCE (TOMATO PUREE [WATER, TOMATO PASTE], CONTAINS 2% OR LESS OF: SUGAR, SPICES, SALT, SOYBEAN OIL, XANTHAN GUM, CITRIC ACID, DEHYDRATED ONION, DEHYDRATED GARLIC), LOW MOISTURE MOZZARELLA CHEESE (PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES), COOKED ITALIAN SAUSAGE (PORK, SPICES, WATER, SALT, CORN SYRUP SOLIDS, DRIED GARLIC, PAPRIKA, SUGAR, LEMON JUICE POWDER [CORN SYRUP SOLIDS, LEMON JUICE SOLIDS, LEMON OIL], FLAVORING), PEPPERONI, BHA, BHT WITH CITRIC ACID ADDED TO HELP PROTECT FLAVOR (PORK, SALT, CONTAINS 2% OR LESS OF: BEEF, DEXTROSE, FLAVORINGS, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, SODIUM NITRITE, SPICES, ASCORBIC ACID, BHA, BHT, CITRIC ACID), BLACK OLIVES (BLACK OLIVES, FERROUS GLUCONATE), RED ONIONS, GREEN BELL PEPPERS, RED BELL PEPPERS, YELLOW BELL PEPPERS, CONTAINS 2% OR LESS OF: CHEDDAR CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO [COLOR]), GRUYERE CHEESE (PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES), FONTINA CHEESE ([PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], POWDERED CELLULOSE [ANTI-CAKING AGENT]), ASIAGO CHEESE ([PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], POWDERED CELLULOSE [ANTI-CAKING AGENT]), DRIED BASIL, DRIED OREGANO.