Which food has less impact on blood sugar?

CRUST (UNBLEACHED ENRICHED WHEAT FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, SPROUTED WHOLE WHEAT FLOUR, SOYBEAN OIL, YEAST, CONTAINS 2% OR LESS OF BREAD CRUMBS [WHEAT FLOUR, SUGAR, YEAST, SALT], WHEAT GLUTEN, SUGAR, FERMENTED WHEAT FLOUR, SALT, OAT BRAN, OAT FIBER, CULTURED WHEAT STARCH, WHEAT FLOUR, ENZYMES), SAUCE (TOMATO PUREE, SALT, SUGAR, EXTRA VIRGIN OLIVE OIL, SPICES, GARLIC POWDER), WHOLE MILK MOZZARELLA CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES), COOKED ITALIAN SAUSAGE (PORK, SPICES, WATER, SALT, CORN SYRUP SOLIDS, DRIED GARLIC, PAPRIKA, FLAVORING, PAPRIKA EXTRACT, SUGAR, DISODIUM INOSINATE AND DISODIUM GUANYLATE, ANNATTO EXTRACT), ROASTED GREEN BELL PEPPERS, ROASTED RED BELL PEPPERS, PARMESAN CHEESE ([PASTEURIZED PART SKIM MILK, CHEESE CULTURES, SALT, ENZYMES], POWDERED CELLULOSE [ANTI-CAKING AGENT]), FENNEL SEED.