There actually are three different monorail loops. The resort monorail runs clockwise around the Seven Seas Lagoon and, after leaving the MK, stops first at the CR, then the TTC, Poly and GF before returning to the MK. The express monorail runs in a parallel loop in the opposite direction and stops only at the MK and TTC. The Epcot monorail runs in a loop with stops at the TTC and Epcot.
So, to get to Chef Mickey's from the MK via monorail you would get off at the first stop at the CR. FWIW, you also can walk from the MK to the CR in about 10 minutes.
To get to the Poly for the Ohana dinner, you can take the resort monorail and get off at the third stop after leaving the MK or there is boat service from the MK to the Poly with a stop at the GF on the way. From the Poly to Epcot, it's best just to walk on the path to the TTC and jump on the Epcot monorail there, since taking the resort monorail would require going almost all the way around the loop to get to the TTC.