Which food has less impact on blood sugar?

CRUST (WHEAT FLOUR, WATER, CANOLA OIL, WHEAT GERM FLOUR, SALT, SKIMMED MILK POWDER, YEAST, DEXTROSE), CHARGRILLED YELLOW AND RED PEPPERS, OLIVE OIL SAUCE (WATER, OLIVE OIL EXTRA VIRGIN, GRANA PADANO CHEESE [MILK, SALT, ANIMAL ENZYMES, EGG WHITE LYSOZYME {PRESERVATIVE}], CORN STARCH, SALT, GARLIC), MOZZARELLA CHEESE MADE WITH WATER BUFFALO MILK (MILKFAT FROM PASTEURIZED WATER BUFFALO MILK AND NONFAT PASTEURIZED WATER BUFFALO MILK, SALT, ANIMAL ENZYMES), BLACK OLIVE SAUCE (BLACK OLIVES [OLIVES, WATER, SALT, LACTIC ACID], OLIVE OIL EXTRA VIRGIN, CREME FRAICHE [CULTURED PASTEURIZED CREAM, CHEESE CULTURES], CANOLA OIL, WHEAT FLOUR, SUGAR, SALT, SPICES, POTATO STARCH), CHARGRILLED ZUCCHINI, MARINATED SEMI-DRIED TOMATOES (SEMI-DRIED TOMATOES, SUNFLOWER OIL, SALT, SPICES, GARLIC), BLACK OLIVES (OLIVES, SALT), PECORINO ROMANO CHEESE MADE WITH SHEEP'S MILK (PASTEURIZED SHEEP'S MILK, SALT, CHEESE CULTURES, ENZYMES), ROASTED GARLIC (GARLIC, PALM OIL), OLIVE OIL EXTRA VIRGIN.