Which food has less impact on blood sugar?

CRUST: ENRICHED FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID, ENZYME), WATER, SOYBEAN OIL, YEAST, CORN SYRUP, PALM OIL, YELLOW CORNMEAL, WHEAT SEMOLINA, SUGAR, SALT, NATURAL FLAVORED OIL (SOYBEAN OIL, HYDROGENATED SOYBEAN OIL, NATURAL FLAVORS, BETA CAROTENE], DOUGH CONDITIONER [DATEM, WHEAT GLUTEN, SUGAR, DEXTROSE, MALTED BARLEY FLOUR, GUAR GUM, CALCIUM PYROPHOSPHATE, ASCORBIC ACID, ENZYME], SODIUM BICARBONATE, SODIUM ALUMINUM PHOSPHATE, VITAL WHEAT GLUTEN, WHEAT PROTEIN ISOLATE, OLIVE OIL, L-CYSTEINE. TOPPINGS: CHEESES (LOW MOISTURE MOZZARELLA CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], FONTINA CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES]), ALFREDO SAUCE (WATER, DEHYDRATED SAUCE BLEND [MILK, DEHYDRATED PARMESAN CHEESE {PASTEURIZED PART-SKIM MILK, CHEESE CULTURE, SALT, ENZYMES}, MODIFIED CORN STARCH, DEHYDRATED ROMANO CHEESE MADE FROM COW'S MILK {PART-SKIM MILK, CHEESE CULTURE, SALT, ENZYMES}, BUTTERMILK, SALT, MALTODEXTRIN, LESS THAN 2% NATURAL FLAVOR, SOY LECITHIN, SPICES, XANTHAN GUM, GARLIC POWDER, AUTOLYZED YEAST EXTRACT, SODIUM PHOSPHATE, LACTIC ACID, WHEY, DEHYDRATED BUTTER], WHOLE MILK, GRATED PARMESAN CHEESE [PARMESAN CHEESE {PASTEURIZED PART-SKIM MILK, CHEESE CULTURES, SALT, ENZYMES}, CELLULOSE {ANTICAKING}], GRATED ROMANO CHEESE [ROMANO CHEESE MADE FROM COW'S MILK {PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES}, CELLULOSE {ANTICAKING}], GARLIC POWDER, NATURAL LEMON JUICE POWDER [CORN SYRUP SOLIDS, NATURAL FLAVORS {LEMON JUICE SOLIDS, NATURAL FLAVORS}]), SPINACH, MUSHROOMS (WHITE, PORTABELLA, CRIMINI), ROASTED GARLIC.