Which food has less impact on blood sugar?

CRUST (WHEAT FLOUR [ENRICHED WHEAT FLOUR {WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID}, ENZYME], WATER, SOYBEAN OIL, YEAST, CONTAINS 2% OR LESS OF: SALT, BAKING POWDER [SODIUM ACID PYROPHOSPHATE, SODIUM BICARBONATE, CORN STARCH, MONOCALCIUM PHOSPHATE], CULTURED WHEY, WHEY, SUGAR, VINEGAR, LECITHIN, DOUGH CONDITIONER [WHEAT FLOUR, ASCORBIC ACID, ENZYMES], SOY LECITHIN [PROCESSING AID]), SAUCE (WATER, TOMATOES, SUGAR, SALT, SPICES INCLUDING CHILI PEPPER, DEXTROSE, GARLIC AND ONION, NATURAL FLAVORS, EXTRACTIVE OF PAPRIKA), CHEESES (LOW MOISTURE WHOLE MILK MOZZARELLA CHEESE [PASTEURIZED MILK CHEESE CULTURES, SALT, ENZYMES], CHEDDAR CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO]), COOKED BEEF PIZZA TOPPING (HAMBURGER [BEEF, SALT, SPICE], WATER, TEXTURED VEGETABLE PROTEIN [SOY PROTEIN CONCENTRATE, CARAMEL COLOR], DRIED POTATOES [DEHYDRATED POTATOES, SODIUM ACID PYROPHOSPHATE], HYDROLYZED CORN PROTEIN AND HYDROLYZED SOY PROTEIN AND HYDROLYZED WHEAT GLUTEN, CORN SYRUP SOLIDS, MALTODEXTRIN, GRILL FLAVOR [FROM PARTIALLY HYDROGENATED SOYBEAN AND COTTONSEED OIL], GARLIC POWDER, MODIFIED CORN STARCH), ONION, BLACK OLIVES (OLIVES, WATER, SALT, FERROUS GLUCONATE), GREEN PEPPER, RED PEPPER.