Which food has less impact on blood sugar?

CRUST (WATER, WHEAT FLOUR, WHITE WHOLE WHEAT FLOUR, CRUST MIX WITH KASHI SEVEN WHOLE GRAINS AND SESAME BLEND [WHEAT GLUTEN, WHOLE OAT FLOUR, OAT FIBER, OAT SYRUP SOLIDS, BARLEY MALT EXTRACT, WHOLE TRITICALE FLOUR, BROWN RICE FLOUR, WHOLE HARD RED WHEAT FLOUR, WHOLE RYE FLOUR, SALT, WHOLE BARLEY FLOUR, WHOLE BUCKWHEAT FLOUR, SESAME SEEDS], DEGERMED YELLOW CORN MEAL, GROUND FLAXSEED, YEAST, HONEY, EXTRA VIRGIN OLIVE OIL, WHEAT GLUTEN, WHEAT STARCH, GARLIC POWDER), SAUCE (TOMATOES [TOMATOES, TOMATO PUREE, CITRIC ACID], ROASTED RED BELL PEPPER PESTO [ROASTED RED BELL PEPPERS, EXPELLER-PRESSED CANOLA OIL, PARMESAN CHEESE [PASTEURIZED PART-SKIM COW'S MILK, CHEESE CULTURE, SALT, ENZYMES], BALSAMIC VINEGAR, BASIL, SEA SALT, GRANULATED GARLIC, BLACK PEPPER, CAYENNE PEPPER], TOMATOES [TOMATOES, CITRIC ACID], DRIED CANE SYRUP, SALT, BASIL, CORNSTARCH), CHEESE BLEND (MOZZARELLA CHEESE [PASTEURIZED PART-SKIM COW'S MILK, CHEESE CULTURES, SALT, ENZYMES], WHITE CHEDDAR CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES, CALCIUM CHLORIDE], CHEDDAR CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES, CALCIUM CHLORIDE, ANNATTO COLOR]), RED BELL PEPPERS, SPINACH, FETA CHEESE (PASTEURIZED COW'S MILK, CHEESE CULTURE, SALT, ENZYMES), RED ONION.