Which food has less impact on blood sugar?

FILLING: CRUSHED TOMATOES IN PUREE (DICED TOMATOES, TOMATO PUREE, CITRIC ACID), CHEESE BLEND (RICOTTA CHEESE [WHEY, CREAM, VINEGAR, CARRAGEENAN], CREAM, WATER, MOZZARELLA CHEESE [PASTEURIZED MILK, CULTURES, SALT, ENZYMES], PARMESAN CHEESE [PASTEURIZED MILK, CULTURES, SALT, ENZYMES], DRIED EGG WHITES, PARSLEY, METHYLCELLULOSE, SALT, SPICE, GARLIC POWDER, ONION POWDER), MEATBALL (PORK, BEEF, WATER, ONIONS, BREADER (ENRICHED BLEACHED WHEAT FLOUR {BLEACHED WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID}, DURUM FLOUR, LEAVENING {SODIUM BICARBONATE, SODIUM ACID PYROPHOSPHATE}, YEAST), TEXTURED SOY PROTEIN CONCENTRATE [SOY PROTEIN, SOY CARBOHYDRATE, CARAMEL COLOR], SOY PROTEIN CONCENTRATE, TOMATO PASTE, SALT, FLAVORING, POTASSIUM CHLORIDE, CARAMEL COLOR, SOY LECITHIN, MONO- AND DIGLYCERIDES, SOYBEAN OIL, SUNFLOWER LECITHIN), MOZZARELLA CHEESE (PASTEURIZED MILK, NONFAT MILK, CULTURES, SALT, ENZYMES), ONIONS, WATER, TOMATO PUREE (WATER, TOMATO PASTE), OLIVE OIL, SUGAR, GARLIC PUREE (CRUSHED GARLIC, CITRIC ACID), SALT, MODIFIED CORN STARCH, BASIL, METHYLCELLULOSE, PARSLEY, SOYBEAN OIL, SPICES, CITRIC ACID. CRUST: (ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID) , INTERESTERIFIED SOYBEAN OIL, WATER, SALT, MODIFIED WHEY, CARAMEL COLOR, WHEAT FLOUR. SPICE TOPPING: LESS THAN 2% OF SALT, DRIED GARLIC, DRIED ONIONS, SPICES, DRIED RED BELL PEPPER.CONTAINS: EGG, MILK, SOY, WHEAT.